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Finding the Fourth Proportional to 7,244,678.60, 10,867,017.90 and 7,150,200.20

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Solution

The fourth proportional to 7,244,678.60, 10,867,017.90 and 7,150,200.20 is: 10,725,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,244,678.60 : 10,867,017.90 = 7,150,200.20 : x
  2. Step 2: Convert to fraction form
    7,244,678.60/10,867,017.90 = 7,150,200.20/x
  3. Step 3: Cross multiply
    7,244,678.60x = 10,867,017.90 × 7,150,200.20
  4. Step 4: Simplify right side
    7,244,678.60x = 77,701,353,561,983.58
  5. Step 5: Solve for x
    x = 77,701,353,561,983.58/7,244,678.60
  6. Step 6: Final answer
    x = 10,725,300.30

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Double scale
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Similar ratio
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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.