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Finding the Fourth Proportional to 9,242,871.92, 12,754,789.20 and 5,056,489.28

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Solution

The fourth proportional to 9,242,871.92, 12,754,789.20 and 5,056,489.28 is: 6,977,750.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,242,871.92 : 12,754,789.20 = 5,056,489.28 : x
  2. Step 2: Convert to fraction form
    9,242,871.92/12,754,789.20 = 5,056,489.28/x
  3. Step 3: Cross multiply
    9,242,871.92x = 12,754,789.20 × 5,056,489.28
  4. Step 4: Simplify right side
    9,242,871.92x = 64,494,454,858,459.77
  5. Step 5: Solve for x
    x = 64,494,454,858,459.77/9,242,871.92
  6. Step 6: Final answer
    x = 6,977,750.58

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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.