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Finding the Fourth Proportional to 6,900,972.30, 10,351,458.45 and 6,900,972.30

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Solution

The fourth proportional to 6,900,972.30, 10,351,458.45 and 6,900,972.30 is: 10,351,458.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,900,972.30 : 10,351,458.45 = 6,900,972.30 : x
  2. Step 2: Convert to fraction form
    6,900,972.30/10,351,458.45 = 6,900,972.30/x
  3. Step 3: Cross multiply
    6,900,972.30x = 10,351,458.45 × 6,900,972.30
  4. Step 4: Simplify right side
    6,900,972.30x = 71,435,128,028,050.92
  5. Step 5: Solve for x
    x = 71,435,128,028,050.92/6,900,972.30
  6. Step 6: Final answer
    x = 10,351,458.45

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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.