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Finding the Fourth Proportional to 7,244,712.60, 10,867,068.90 and 7,150,234.20

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Solution

The fourth proportional to 7,244,712.60, 10,867,068.90 and 7,150,234.20 is: 10,725,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,244,712.60 : 10,867,068.90 = 7,150,234.20 : x
  2. Step 2: Convert to fraction form
    7,244,712.60/10,867,068.90 = 7,150,234.20/x
  3. Step 3: Cross multiply
    7,244,712.60x = 10,867,068.90 × 7,150,234.20
  4. Step 4: Simplify right side
    7,244,712.60x = 77,702,087,702,536.39
  5. Step 5: Solve for x
    x = 77,702,087,702,536.39/7,244,712.60
  6. Step 6: Final answer
    x = 10,725,351.30

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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.