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Finding the Fourth Proportional to 17,127.92, 25,691.48 and 7,893.92

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Solution

The fourth proportional to 17,127.92, 25,691.48 and 7,893.92 is: 11,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,127.92 : 25,691.48 = 7,893.92 : x
  2. Step 2: Convert to fraction form
    17,127.92/25,691.48 = 7,893.92/x
  3. Step 3: Cross multiply
    17,127.92x = 25,691.48 × 7,893.92
  4. Step 4: Simplify right side
    17,127.92x = 202,806,487.80
  5. Step 5: Solve for x
    x = 202,806,487.80/17,127.92
  6. Step 6: Final answer
    x = 11,840.70

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1.5x scale

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.