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Finding the Fourth Proportional to 60,469.20, 90,736.20 and 25,412.40

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Solution

The fourth proportional to 60,469.20, 90,736.20 and 25,412.40 is: 38,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,469.20 : 90,736.20 = 25,412.40 : x
  2. Step 2: Convert to fraction form
    60,469.20/90,736.20 = 25,412.40/x
  3. Step 3: Cross multiply
    60,469.20x = 90,736.20 × 25,412.40
  4. Step 4: Simplify right side
    60,469.20x = 2,305,824,608.88
  5. Step 5: Solve for x
    x = 2,305,824,608.88/60,469.20
  6. Step 6: Final answer
    x = 38,132.22

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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.