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Finding the Fourth Proportional to 66,569.80, 99,854.70 and 33,239.92

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Solution

The fourth proportional to 66,569.80, 99,854.70 and 33,239.92 is: 49,859.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,569.80 : 99,854.70 = 33,239.92 : x
  2. Step 2: Convert to fraction form
    66,569.80/99,854.70 = 33,239.92/x
  3. Step 3: Cross multiply
    66,569.80x = 99,854.70 × 33,239.92
  4. Step 4: Simplify right side
    66,569.80x = 3,319,162,239.62
  5. Step 5: Solve for x
    x = 3,319,162,239.62/66,569.80
  6. Step 6: Final answer
    x = 49,859.88

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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.