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Finding the Fourth Proportional to 66,323.20, 91,523.04 and 36,107.74

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Solution

The fourth proportional to 66,323.20, 91,523.04 and 36,107.74 is: 49,827.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,323.20 : 91,523.04 = 36,107.74 : x
  2. Step 2: Convert to fraction form
    66,323.20/91,523.04 = 36,107.74/x
  3. Step 3: Cross multiply
    66,323.20x = 91,523.04 × 36,107.74
  4. Step 4: Simplify right side
    66,323.20x = 3,304,690,132.33
  5. Step 5: Solve for x
    x = 3,304,690,132.33/66,323.20
  6. Step 6: Final answer
    x = 49,827.06

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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.