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Finding the Fourth Proportional to 17,418.61, 24,039.28 and 9,865.25

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Solution

The fourth proportional to 17,418.61, 24,039.28 and 9,865.25 is: 13,614.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,418.61 : 24,039.28 = 9,865.25 : x
  2. Step 2: Convert to fraction form
    17,418.61/24,039.28 = 9,865.25/x
  3. Step 3: Cross multiply
    17,418.61x = 24,039.28 × 9,865.25
  4. Step 4: Simplify right side
    17,418.61x = 237,153,507.02
  5. Step 5: Solve for x
    x = 237,153,507.02/17,418.61
  6. Step 6: Final answer
    x = 13,614.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.