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Finding the Fourth Proportional to 66,322.74, 91,524.03 and 36,108.66

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Solution

The fourth proportional to 66,322.74, 91,524.03 and 36,108.66 is: 49,829.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,322.74 : 91,524.03 = 36,108.66 : x
  2. Step 2: Convert to fraction form
    66,322.74/91,524.03 = 36,108.66/x
  3. Step 3: Cross multiply
    66,322.74x = 91,524.03 × 36,108.66
  4. Step 4: Simplify right side
    66,322.74x = 3,304,810,081.10
  5. Step 5: Solve for x
    x = 3,304,810,081.10/66,322.74
  6. Step 6: Final answer
    x = 49,829.22

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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.