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Finding the Fourth Proportional to 4,981.32, 7,465.14 and 2,517.78

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Solution

The fourth proportional to 4,981.32, 7,465.14 and 2,517.78 is: 3,773.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.32 : 7,465.14 = 2,517.78 : x
  2. Step 2: Convert to fraction form
    4,981.32/7,465.14 = 2,517.78/x
  3. Step 3: Cross multiply
    4,981.32x = 7,465.14 × 2,517.78
  4. Step 4: Simplify right side
    4,981.32x = 18,795,580.19
  5. Step 5: Solve for x
    x = 18,795,580.19/4,981.32
  6. Step 6: Final answer
    x = 3,773.21

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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.