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Finding the Fourth Proportional to 9,344,691.56, 12,895,650.15 and 5,214,679.31

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Solution

The fourth proportional to 9,344,691.56, 12,895,650.15 and 5,214,679.31 is: 7,196,243.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,344,691.56 : 12,895,650.15 = 5,214,679.31 : x
  2. Step 2: Convert to fraction form
    9,344,691.56/12,895,650.15 = 5,214,679.31/x
  3. Step 3: Cross multiply
    9,344,691.56x = 12,895,650.15 × 5,214,679.31
  4. Step 4: Simplify right side
    9,344,691.56x = 67,246,680,026,203.39
  5. Step 5: Solve for x
    x = 67,246,680,026,203.39/9,344,691.56
  6. Step 6: Final answer
    x = 7,196,243.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.