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Finding the Fourth Proportional to 66,476.97, 91,753.97 and 38,199.06

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Solution

The fourth proportional to 66,476.97, 91,753.97 and 38,199.06 is: 52,723.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,476.97 : 91,753.97 = 38,199.06 : x
  2. Step 2: Convert to fraction form
    66,476.97/91,753.97 = 38,199.06/x
  3. Step 3: Cross multiply
    66,476.97x = 91,753.97 × 38,199.06
  4. Step 4: Simplify right side
    66,476.97x = 3,504,915,214.27
  5. Step 5: Solve for x
    x = 3,504,915,214.27/66,476.97
  6. Step 6: Final answer
    x = 52,723.75

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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.