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Finding the Fourth Proportional to 42,544.52, 63,815.20 and 17,243.16

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Solution

The fourth proportional to 42,544.52, 63,815.20 and 17,243.16 is: 25,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,544.52 : 63,815.20 = 17,243.16 : x
  2. Step 2: Convert to fraction form
    42,544.52/63,815.20 = 17,243.16/x
  3. Step 3: Cross multiply
    42,544.52x = 63,815.20 × 17,243.16
  4. Step 4: Simplify right side
    42,544.52x = 1,100,375,704.03
  5. Step 5: Solve for x
    x = 1,100,375,704.03/42,544.52
  6. Step 6: Final answer
    x = 25,864.10

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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.