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Finding the Fourth Proportional to 66,641.47, 99,979.71 and 23,951.21

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Solution

The fourth proportional to 66,641.47, 99,979.71 and 23,951.21 is: 35,933.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,641.47 : 99,979.71 = 23,951.21 : x
  2. Step 2: Convert to fraction form
    66,641.47/99,979.71 = 23,951.21/x
  3. Step 3: Cross multiply
    66,641.47x = 99,979.71 × 23,951.21
  4. Step 4: Simplify right side
    66,641.47x = 2,394,635,029.95
  5. Step 5: Solve for x
    x = 2,394,635,029.95/66,641.47
  6. Step 6: Final answer
    x = 35,933.11

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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.