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Finding the Fourth Proportional to 23,689.73, 32,691.73 and 13,079.28

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Solution

The fourth proportional to 23,689.73, 32,691.73 and 13,079.28 is: 18,049.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,689.73 : 32,691.73 = 13,079.28 : x
  2. Step 2: Convert to fraction form
    23,689.73/32,691.73 = 13,079.28/x
  3. Step 3: Cross multiply
    23,689.73x = 32,691.73 × 13,079.28
  4. Step 4: Simplify right side
    23,689.73x = 427,584,290.35
  5. Step 5: Solve for x
    x = 427,584,290.35/23,689.73
  6. Step 6: Final answer
    x = 18,049.36

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1.5x scale

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.