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Finding the Fourth Proportional to 2,474.76, 3,712.50 and 743.16

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Solution

The fourth proportional to 2,474.76, 3,712.50 and 743.16 is: 1,114.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,474.76 : 3,712.50 = 743.16 : x
  2. Step 2: Convert to fraction form
    2,474.76/3,712.50 = 743.16/x
  3. Step 3: Cross multiply
    2,474.76x = 3,712.50 × 743.16
  4. Step 4: Simplify right side
    2,474.76x = 2,758,981.50
  5. Step 5: Solve for x
    x = 2,758,981.50/2,474.76
  6. Step 6: Final answer
    x = 1,114.85

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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.