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Finding the Fourth Proportional to 65,906.60, 98,859.90 and 65,469.20

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Solution

The fourth proportional to 65,906.60, 98,859.90 and 65,469.20 is: 98,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,906.60 : 98,859.90 = 65,469.20 : x
  2. Step 2: Convert to fraction form
    65,906.60/98,859.90 = 65,469.20/x
  3. Step 3: Cross multiply
    65,906.60x = 98,859.90 × 65,469.20
  4. Step 4: Simplify right side
    65,906.60x = 6,472,278,565.08
  5. Step 5: Solve for x
    x = 6,472,278,565.08/65,906.60
  6. Step 6: Final answer
    x = 98,203.80

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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.