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Finding the Fourth Proportional to 24,898.50, 34,359.93 and 13,720.50

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Solution

The fourth proportional to 24,898.50, 34,359.93 and 13,720.50 is: 18,934.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,898.50 : 34,359.93 = 13,720.50 : x
  2. Step 2: Convert to fraction form
    24,898.50/34,359.93 = 13,720.50/x
  3. Step 3: Cross multiply
    24,898.50x = 34,359.93 × 13,720.50
  4. Step 4: Simplify right side
    24,898.50x = 471,435,419.57
  5. Step 5: Solve for x
    x = 471,435,419.57/24,898.50
  6. Step 6: Final answer
    x = 18,934.29

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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.