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Finding the Fourth Proportional to 69,350.40, 95,622.48 and 65,613.60

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Solution

The fourth proportional to 69,350.40, 95,622.48 and 65,613.60 is: 90,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,350.40 : 95,622.48 = 65,613.60 : x
  2. Step 2: Convert to fraction form
    69,350.40/95,622.48 = 65,613.60/x
  3. Step 3: Cross multiply
    69,350.40x = 95,622.48 × 65,613.60
  4. Step 4: Simplify right side
    69,350.40x = 6,274,135,153.73
  5. Step 5: Solve for x
    x = 6,274,135,153.73/69,350.40
  6. Step 6: Final answer
    x = 90,470.06

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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.