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Finding the Fourth Proportional to 66,382.83, 99,488.13 and 26,918.41

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Solution

The fourth proportional to 66,382.83, 99,488.13 and 26,918.41 is: 40,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,382.83 : 99,488.13 = 26,918.41 : x
  2. Step 2: Convert to fraction form
    66,382.83/99,488.13 = 26,918.41/x
  3. Step 3: Cross multiply
    66,382.83x = 99,488.13 × 26,918.41
  4. Step 4: Simplify right side
    66,382.83x = 2,678,062,273.47
  5. Step 5: Solve for x
    x = 2,678,062,273.47/66,382.83
  6. Step 6: Final answer
    x = 40,342.70

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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.