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Finding the Fourth Proportional to 18,104.85, 24,984.72 and 10,147.14

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Solution

The fourth proportional to 18,104.85, 24,984.72 and 10,147.14 is: 14,003.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,104.85 : 24,984.72 = 10,147.14 : x
  2. Step 2: Convert to fraction form
    18,104.85/24,984.72 = 10,147.14/x
  3. Step 3: Cross multiply
    18,104.85x = 24,984.72 × 10,147.14
  4. Step 4: Simplify right side
    18,104.85x = 253,523,451.70
  5. Step 5: Solve for x
    x = 253,523,451.70/18,104.85
  6. Step 6: Final answer
    x = 14,003.07

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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.