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Finding the Fourth Proportional to 18,242.98, 25,174.84 and 10,285.14

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Solution

The fourth proportional to 18,242.98, 25,174.84 and 10,285.14 is: 14,193.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242.98 : 25,174.84 = 10,285.14 : x
  2. Step 2: Convert to fraction form
    18,242.98/25,174.84 = 10,285.14/x
  3. Step 3: Cross multiply
    18,242.98x = 25,174.84 × 10,285.14
  4. Step 4: Simplify right side
    18,242.98x = 258,926,753.88
  5. Step 5: Solve for x
    x = 258,926,753.88/18,242.98
  6. Step 6: Final answer
    x = 14,193.23

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1.5x scale

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.