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Finding the Fourth Proportional to 60,674.50, 91,052.76 and 21,231.96

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Solution

The fourth proportional to 60,674.50, 91,052.76 and 21,231.96 is: 31,862.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,674.50 : 91,052.76 = 21,231.96 : x
  2. Step 2: Convert to fraction form
    60,674.50/91,052.76 = 21,231.96/x
  3. Step 3: Cross multiply
    60,674.50x = 91,052.76 × 21,231.96
  4. Step 4: Simplify right side
    60,674.50x = 1,933,228,330.58
  5. Step 5: Solve for x
    x = 1,933,228,330.58/60,674.50
  6. Step 6: Final answer
    x = 31,862.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.