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Finding the Fourth Proportional to 66,017.31, 99,033.65 and 23,917.22

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Solution

The fourth proportional to 66,017.31, 99,033.65 and 23,917.22 is: 35,878.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,017.31 : 99,033.65 = 23,917.22 : x
  2. Step 2: Convert to fraction form
    66,017.31/99,033.65 = 23,917.22/x
  3. Step 3: Cross multiply
    66,017.31x = 99,033.65 × 23,917.22
  4. Step 4: Simplify right side
    66,017.31x = 2,368,608,979.70
  5. Step 5: Solve for x
    x = 2,368,608,979.70/66,017.31
  6. Step 6: Final answer
    x = 35,878.60

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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.