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Finding the Fourth Proportional to 66,559.91, 91,856.40 and 36,348.04

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Solution

The fourth proportional to 66,559.91, 91,856.40 and 36,348.04 is: 50,162.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,559.91 : 91,856.40 = 36,348.04 : x
  2. Step 2: Convert to fraction form
    66,559.91/91,856.40 = 36,348.04/x
  3. Step 3: Cross multiply
    66,559.91x = 91,856.40 × 36,348.04
  4. Step 4: Simplify right side
    66,559.91x = 3,338,800,079.97
  5. Step 5: Solve for x
    x = 3,338,800,079.97/66,559.91
  6. Step 6: Final answer
    x = 50,162.33

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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.