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Finding the Fourth Proportional to 18,112.53, 24,986.03 and 12,073.17

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Solution

The fourth proportional to 18,112.53, 24,986.03 and 12,073.17 is: 16,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.53 : 24,986.03 = 12,073.17 : x
  2. Step 2: Convert to fraction form
    18,112.53/24,986.03 = 12,073.17/x
  3. Step 3: Cross multiply
    18,112.53x = 24,986.03 × 12,073.17
  4. Step 4: Simplify right side
    18,112.53x = 301,660,527.45
  5. Step 5: Solve for x
    x = 301,660,527.45/18,112.53
  6. Step 6: Final answer
    x = 16,654.80

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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.