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Finding the Fourth Proportional to 69,617.44, 96,073.50 and 39,402.76

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Solution

The fourth proportional to 69,617.44, 96,073.50 and 39,402.76 is: 54,376.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,617.44 : 96,073.50 = 39,402.76 : x
  2. Step 2: Convert to fraction form
    69,617.44/96,073.50 = 39,402.76/x
  3. Step 3: Cross multiply
    69,617.44x = 96,073.50 × 39,402.76
  4. Step 4: Simplify right side
    69,617.44x = 3,785,561,062.86
  5. Step 5: Solve for x
    x = 3,785,561,062.86/69,617.44
  6. Step 6: Final answer
    x = 54,376.62

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Double scale
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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.