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Finding the Fourth Proportional to 66,506.97, 99,601.56 and 36,851.25

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Solution

The fourth proportional to 66,506.97, 99,601.56 and 36,851.25 is: 55,188.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,506.97 : 99,601.56 = 36,851.25 : x
  2. Step 2: Convert to fraction form
    66,506.97/99,601.56 = 36,851.25/x
  3. Step 3: Cross multiply
    66,506.97x = 99,601.56 × 36,851.25
  4. Step 4: Simplify right side
    66,506.97x = 3,670,441,987.95
  5. Step 5: Solve for x
    x = 3,670,441,987.95/66,506.97
  6. Step 6: Final answer
    x = 55,188.83

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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.