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Finding the Fourth Proportional to 66,463.61, 91,716.98 and 36,248.38

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Solution

The fourth proportional to 66,463.61, 91,716.98 and 36,248.38 is: 50,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,463.61 : 91,716.98 = 36,248.38 : x
  2. Step 2: Convert to fraction form
    66,463.61/91,716.98 = 36,248.38/x
  3. Step 3: Cross multiply
    66,463.61x = 91,716.98 × 36,248.38
  4. Step 4: Simplify right side
    66,463.61x = 3,324,591,532.96
  5. Step 5: Solve for x
    x = 3,324,591,532.96/66,463.61
  6. Step 6: Final answer
    x = 50,021.23

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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.