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Finding the Fourth Proportional to 63,502.72, 87,631.68 and 38,347.84

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Solution

The fourth proportional to 63,502.72, 87,631.68 and 38,347.84 is: 52,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,502.72 : 87,631.68 = 38,347.84 : x
  2. Step 2: Convert to fraction form
    63,502.72/87,631.68 = 38,347.84/x
  3. Step 3: Cross multiply
    63,502.72x = 87,631.68 × 38,347.84
  4. Step 4: Simplify right side
    63,502.72x = 3,360,485,643.57
  5. Step 5: Solve for x
    x = 3,360,485,643.57/63,502.72
  6. Step 6: Final answer
    x = 52,918.77

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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.