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Finding the Fourth Proportional to 66,488.97, 99,752.22 and 27,074.37

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Solution

The fourth proportional to 66,488.97, 99,752.22 and 27,074.37 is: 40,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,488.97 : 99,752.22 = 27,074.37 : x
  2. Step 2: Convert to fraction form
    66,488.97/99,752.22 = 27,074.37/x
  3. Step 3: Cross multiply
    66,488.97x = 99,752.22 × 27,074.37
  4. Step 4: Simplify right side
    66,488.97x = 2,700,728,512.60
  5. Step 5: Solve for x
    x = 2,700,728,512.60/66,488.97
  6. Step 6: Final answer
    x = 40,619.20

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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.