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Finding the Fourth Proportional to 6,812,785,873.20, 10,219,178,809.80 and 6,812,785,873.20

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Solution

The fourth proportional to 6,812,785,873.20, 10,219,178,809.80 and 6,812,785,873.20 is: 10,219,178,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,812,785,873.20 : 10,219,178,809.80 = 6,812,785,873.20 : x
  2. Step 2: Convert to fraction form
    6,812,785,873.20/10,219,178,809.80 = 6,812,785,873.20/x
  3. Step 3: Cross multiply
    6,812,785,873.20x = 10,219,178,809.80 × 6,812,785,873.20
  4. Step 4: Simplify right side
    6,812,785,873.20x = 69,621,077,031,110,221,824
  5. Step 5: Solve for x
    x = 69,621,077,031,110,221,824/6,812,785,873.20
  6. Step 6: Final answer
    x = 10,219,178,809.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.