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Finding the Fourth Proportional to 60,993.62, 91,472.85 and 21,010.98

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Solution

The fourth proportional to 60,993.62, 91,472.85 and 21,010.98 is: 31,510.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,993.62 : 91,472.85 = 21,010.98 : x
  2. Step 2: Convert to fraction form
    60,993.62/91,472.85 = 21,010.98/x
  3. Step 3: Cross multiply
    60,993.62x = 91,472.85 × 21,010.98
  4. Step 4: Simplify right side
    60,993.62x = 1,921,934,221.89
  5. Step 5: Solve for x
    x = 1,921,934,221.89/60,993.62
  6. Step 6: Final answer
    x = 31,510.41

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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.