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Finding the Fourth Proportional to 38,480.60, 57,720.90 and 17,744.60

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Solution

The fourth proportional to 38,480.60, 57,720.90 and 17,744.60 is: 26,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480.60 : 57,720.90 = 17,744.60 : x
  2. Step 2: Convert to fraction form
    38,480.60/57,720.90 = 17,744.60/x
  3. Step 3: Cross multiply
    38,480.60x = 57,720.90 × 17,744.60
  4. Step 4: Simplify right side
    38,480.60x = 1,024,234,282.14
  5. Step 5: Solve for x
    x = 1,024,234,282.14/38,480.60
  6. Step 6: Final answer
    x = 26,616.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.