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Finding the Fourth Proportional to 18,036.90, 24,892.08 and 10,079.16

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Solution

The fourth proportional to 18,036.90, 24,892.08 and 10,079.16 is: 13,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,036.90 : 24,892.08 = 10,079.16 : x
  2. Step 2: Convert to fraction form
    18,036.90/24,892.08 = 10,079.16/x
  3. Step 3: Cross multiply
    18,036.90x = 24,892.08 × 10,079.16
  4. Step 4: Simplify right side
    18,036.90x = 250,891,257.05
  5. Step 5: Solve for x
    x = 250,891,257.05/18,036.90
  6. Step 6: Final answer
    x = 13,909.89

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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.