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Finding the Fourth Proportional to 64,761.59, 97,155.49 and 27,321.75

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Solution

The fourth proportional to 64,761.59, 97,155.49 and 27,321.75 is: 40,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,761.59 : 97,155.49 = 27,321.75 : x
  2. Step 2: Convert to fraction form
    64,761.59/97,155.49 = 27,321.75/x
  3. Step 3: Cross multiply
    64,761.59x = 97,155.49 × 27,321.75
  4. Step 4: Simplify right side
    64,761.59x = 2,654,457,680.16
  5. Step 5: Solve for x
    x = 2,654,457,680.16/64,761.59
  6. Step 6: Final answer
    x = 40,988.15

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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.