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Finding the Fourth Proportional to 18,169.23, 25,079.07 and 10,617.20

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Solution

The fourth proportional to 18,169.23, 25,079.07 and 10,617.20 is: 14,654.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.23 : 25,079.07 = 10,617.20 : x
  2. Step 2: Convert to fraction form
    18,169.23/25,079.07 = 10,617.20/x
  3. Step 3: Cross multiply
    18,169.23x = 25,079.07 × 10,617.20
  4. Step 4: Simplify right side
    18,169.23x = 266,269,376.61
  5. Step 5: Solve for x
    x = 266,269,376.61/18,169.23
  6. Step 6: Final answer
    x = 14,654.96

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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.