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Finding the Fourth Proportional to 43,372.47, 65,059.17 and 15,287.29

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Solution

The fourth proportional to 43,372.47, 65,059.17 and 15,287.29 is: 22,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,372.47 : 65,059.17 = 15,287.29 : x
  2. Step 2: Convert to fraction form
    43,372.47/65,059.17 = 15,287.29/x
  3. Step 3: Cross multiply
    43,372.47x = 65,059.17 × 15,287.29
  4. Step 4: Simplify right side
    43,372.47x = 994,578,361.95
  5. Step 5: Solve for x
    x = 994,578,361.95/43,372.47
  6. Step 6: Final answer
    x = 22,931.10

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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.