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Finding the Fourth Proportional to 64,447.79, 96,709.96 and 34,864.97

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Solution

The fourth proportional to 64,447.79, 96,709.96 and 34,864.97 is: 52,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,447.79 : 96,709.96 = 34,864.97 : x
  2. Step 2: Convert to fraction form
    64,447.79/96,709.96 = 34,864.97/x
  3. Step 3: Cross multiply
    64,447.79x = 96,709.96 × 34,864.97
  4. Step 4: Simplify right side
    64,447.79x = 3,371,789,854.10
  5. Step 5: Solve for x
    x = 3,371,789,854.10/64,447.79
  6. Step 6: Final answer
    x = 52,318.16

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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.