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Finding the Fourth Proportional to 66,708.65, 99,963.95 and 37,085.73

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Solution

The fourth proportional to 66,708.65, 99,963.95 and 37,085.73 is: 55,573.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,708.65 : 99,963.95 = 37,085.73 : x
  2. Step 2: Convert to fraction form
    66,708.65/99,963.95 = 37,085.73/x
  3. Step 3: Cross multiply
    66,708.65x = 99,963.95 × 37,085.73
  4. Step 4: Simplify right side
    66,708.65x = 3,707,235,874.00
  5. Step 5: Solve for x
    x = 3,707,235,874.00/66,708.65
  6. Step 6: Final answer
    x = 55,573.54

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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.