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Finding the Fourth Proportional to 60,809.67, 91,209.99 and 21,367.17

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Solution

The fourth proportional to 60,809.67, 91,209.99 and 21,367.17 is: 32,049.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,809.67 : 91,209.99 = 21,367.17 : x
  2. Step 2: Convert to fraction form
    60,809.67/91,209.99 = 21,367.17/x
  3. Step 3: Cross multiply
    60,809.67x = 91,209.99 × 21,367.17
  4. Step 4: Simplify right side
    60,809.67x = 1,948,899,362.03
  5. Step 5: Solve for x
    x = 1,948,899,362.03/60,809.67
  6. Step 6: Final answer
    x = 32,049.17

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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.