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Finding the Fourth Proportional to 66,325.88, 91,529.92 and 36,111.46

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Solution

The fourth proportional to 66,325.88, 91,529.92 and 36,111.46 is: 49,833.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,325.88 : 91,529.92 = 36,111.46 : x
  2. Step 2: Convert to fraction form
    66,325.88/91,529.92 = 36,111.46/x
  3. Step 3: Cross multiply
    66,325.88x = 91,529.92 × 36,111.46
  4. Step 4: Simplify right side
    66,325.88x = 3,305,279,044.88
  5. Step 5: Solve for x
    x = 3,305,279,044.88/66,325.88
  6. Step 6: Final answer
    x = 49,833.93

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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.