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Finding the Fourth Proportional to 18,172.01, 25,073.70 and 10,616.88

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Solution

The fourth proportional to 18,172.01, 25,073.70 and 10,616.88 is: 14,649.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.01 : 25,073.70 = 10,616.88 : x
  2. Step 2: Convert to fraction form
    18,172.01/25,073.70 = 10,616.88/x
  3. Step 3: Cross multiply
    18,172.01x = 25,073.70 × 10,616.88
  4. Step 4: Simplify right side
    18,172.01x = 266,204,500.32
  5. Step 5: Solve for x
    x = 266,204,500.32/18,172.01
  6. Step 6: Final answer
    x = 14,649.15

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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.