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Finding the Fourth Proportional to 66,132.93, 91,264.11 and 35,918.84

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Solution

The fourth proportional to 66,132.93, 91,264.11 and 35,918.84 is: 49,568.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,132.93 : 91,264.11 = 35,918.84 : x
  2. Step 2: Convert to fraction form
    66,132.93/91,264.11 = 35,918.84/x
  3. Step 3: Cross multiply
    66,132.93x = 91,264.11 × 35,918.84
  4. Step 4: Simplify right side
    66,132.93x = 3,278,100,964.83
  5. Step 5: Solve for x
    x = 3,278,100,964.83/66,132.93
  6. Step 6: Final answer
    x = 49,568.36

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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.