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Finding the Fourth Proportional to 65,845.92, 98,773.92 and 28,406.88

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Solution

The fourth proportional to 65,845.92, 98,773.92 and 28,406.88 is: 42,612.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,845.92 : 98,773.92 = 28,406.88 : x
  2. Step 2: Convert to fraction form
    65,845.92/98,773.92 = 28,406.88/x
  3. Step 3: Cross multiply
    65,845.92x = 98,773.92 × 28,406.88
  4. Step 4: Simplify right side
    65,845.92x = 2,805,858,892.57
  5. Step 5: Solve for x
    x = 2,805,858,892.57/65,845.92
  6. Step 6: Final answer
    x = 42,612.49

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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.