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Finding the Fourth Proportional to 19,841.64, 29,691.40 and 17,182.44

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Solution

The fourth proportional to 19,841.64, 29,691.40 and 17,182.44 is: 25,712.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,841.64 : 29,691.40 = 17,182.44 : x
  2. Step 2: Convert to fraction form
    19,841.64/29,691.40 = 17,182.44/x
  3. Step 3: Cross multiply
    19,841.64x = 29,691.40 × 17,182.44
  4. Step 4: Simplify right side
    19,841.64x = 510,170,613.10
  5. Step 5: Solve for x
    x = 510,170,613.10/19,841.64
  6. Step 6: Final answer
    x = 25,712.12

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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.