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Finding the Fourth Proportional to 12,540.72, 17,306.12 and 6,875.71

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Solution

The fourth proportional to 12,540.72, 17,306.12 and 6,875.71 is: 9,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.72 : 17,306.12 = 6,875.71 : x
  2. Step 2: Convert to fraction form
    12,540.72/17,306.12 = 6,875.71/x
  3. Step 3: Cross multiply
    12,540.72x = 17,306.12 × 6,875.71
  4. Step 4: Simplify right side
    12,540.72x = 118,991,884.94
  5. Step 5: Solve for x
    x = 118,991,884.94/12,540.72
  6. Step 6: Final answer
    x = 9,488.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.