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Finding the Fourth Proportional to 66,132.58, 91,263.62 and 35,918.49

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Solution

The fourth proportional to 66,132.58, 91,263.62 and 35,918.49 is: 49,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,132.58 : 91,263.62 = 35,918.49 : x
  2. Step 2: Convert to fraction form
    66,132.58/91,263.62 = 35,918.49/x
  3. Step 3: Cross multiply
    66,132.58x = 91,263.62 × 35,918.49
  4. Step 4: Simplify right side
    66,132.58x = 3,278,051,377.44
  5. Step 5: Solve for x
    x = 3,278,051,377.44/66,132.58
  6. Step 6: Final answer
    x = 49,567.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.