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Finding the Fourth Proportional to 66,758.88, 100,079.92 and 33,432.24

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Solution

The fourth proportional to 66,758.88, 100,079.92 and 33,432.24 is: 50,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,758.88 : 100,079.92 = 33,432.24 : x
  2. Step 2: Convert to fraction form
    66,758.88/100,079.92 = 33,432.24/x
  3. Step 3: Cross multiply
    66,758.88x = 100,079.92 × 33,432.24
  4. Step 4: Simplify right side
    66,758.88x = 3,345,895,904.62
  5. Step 5: Solve for x
    x = 3,345,895,904.62/66,758.88
  6. Step 6: Final answer
    x = 50,119.11

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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.