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Finding the Fourth Proportional to 5,414.52, 7,472.16 and 3,178.01

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Solution

The fourth proportional to 5,414.52, 7,472.16 and 3,178.01 is: 4,385.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.52 : 7,472.16 = 3,178.01 : x
  2. Step 2: Convert to fraction form
    5,414.52/7,472.16 = 3,178.01/x
  3. Step 3: Cross multiply
    5,414.52x = 7,472.16 × 3,178.01
  4. Step 4: Simplify right side
    5,414.52x = 23,746,580.52
  5. Step 5: Solve for x
    x = 23,746,580.52/5,414.52
  6. Step 6: Final answer
    x = 4,385.72

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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.