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Finding the Fourth Proportional to 66,588.32, 91,890.96 and 36,373.28

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Solution

The fourth proportional to 66,588.32, 91,890.96 and 36,373.28 is: 50,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,588.32 : 91,890.96 = 36,373.28 : x
  2. Step 2: Convert to fraction form
    66,588.32/91,890.96 = 36,373.28/x
  3. Step 3: Cross multiply
    66,588.32x = 91,890.96 × 36,373.28
  4. Step 4: Simplify right side
    66,588.32x = 3,342,375,617.55
  5. Step 5: Solve for x
    x = 3,342,375,617.55/66,588.32
  6. Step 6: Final answer
    x = 50,194.62

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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.