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Finding the Fourth Proportional to 66,952.96, 100,387.20 and 33,633.28

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Solution

The fourth proportional to 66,952.96, 100,387.20 and 33,633.28 is: 50,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,952.96 : 100,387.20 = 33,633.28 : x
  2. Step 2: Convert to fraction form
    66,952.96/100,387.20 = 33,633.28/x
  3. Step 3: Cross multiply
    66,952.96x = 100,387.20 × 33,633.28
  4. Step 4: Simplify right side
    66,952.96x = 3,376,350,806.02
  5. Step 5: Solve for x
    x = 3,376,350,806.02/66,952.96
  6. Step 6: Final answer
    x = 50,428.70

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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.