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Finding the Fourth Proportional to 66,250.76, 91,425.15 and 36,035.43

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Solution

The fourth proportional to 66,250.76, 91,425.15 and 36,035.43 is: 49,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,250.76 : 91,425.15 = 36,035.43 : x
  2. Step 2: Convert to fraction form
    66,250.76/91,425.15 = 36,035.43/x
  3. Step 3: Cross multiply
    66,250.76x = 91,425.15 × 36,035.43
  4. Step 4: Simplify right side
    66,250.76x = 3,294,544,593.06
  5. Step 5: Solve for x
    x = 3,294,544,593.06/66,250.76
  6. Step 6: Final answer
    x = 49,728.41

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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.