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Finding the Fourth Proportional to 65,906.48, 90,964.68 and 60,592.88

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Solution

The fourth proportional to 65,906.48, 90,964.68 and 60,592.88 is: 83,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,906.48 : 90,964.68 = 60,592.88 : x
  2. Step 2: Convert to fraction form
    65,906.48/90,964.68 = 60,592.88/x
  3. Step 3: Cross multiply
    65,906.48x = 90,964.68 × 60,592.88
  4. Step 4: Simplify right side
    65,906.48x = 5,511,811,939.48
  5. Step 5: Solve for x
    x = 5,511,811,939.48/65,906.48
  6. Step 6: Final answer
    x = 83,630.80

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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.