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Finding the Fourth Proportional to 18,107.48, 24,987.98 and 10,149.80

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Solution

The fourth proportional to 18,107.48, 24,987.98 and 10,149.80 is: 14,006.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.48 : 24,987.98 = 10,149.80 : x
  2. Step 2: Convert to fraction form
    18,107.48/24,987.98 = 10,149.80/x
  3. Step 3: Cross multiply
    18,107.48x = 24,987.98 × 10,149.80
  4. Step 4: Simplify right side
    18,107.48x = 253,622,999.40
  5. Step 5: Solve for x
    x = 253,622,999.40/18,107.48
  6. Step 6: Final answer
    x = 14,006.53

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