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Finding the Fourth Proportional to 57,513.28, 86,269.92 and 32,872

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Solution

The fourth proportional to 57,513.28, 86,269.92 and 32,872 is: 49,308

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,513.28 : 86,269.92 = 32,872 : x
  2. Step 2: Convert to fraction form
    57,513.28/86,269.92 = 32,872/x
  3. Step 3: Cross multiply
    57,513.28x = 86,269.92 × 32,872
  4. Step 4: Simplify right side
    57,513.28x = 2,835,864,810.24
  5. Step 5: Solve for x
    x = 2,835,864,810.24/57,513.28
  6. Step 6: Final answer
    x = 49,308

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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.