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Finding the Fourth Proportional to 7,146.54, 9,862.14 and 4,002.72

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Solution

The fourth proportional to 7,146.54, 9,862.14 and 4,002.72 is: 5,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.54 : 9,862.14 = 4,002.72 : x
  2. Step 2: Convert to fraction form
    7,146.54/9,862.14 = 4,002.72/x
  3. Step 3: Cross multiply
    7,146.54x = 9,862.14 × 4,002.72
  4. Step 4: Simplify right side
    7,146.54x = 39,475,385.02
  5. Step 5: Solve for x
    x = 39,475,385.02/7,146.54
  6. Step 6: Final answer
    x = 5,523.71

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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.