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Finding the Fourth Proportional to 61,381.88, 92,069.04 and 21,937.04

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Solution

The fourth proportional to 61,381.88, 92,069.04 and 21,937.04 is: 32,904.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,381.88 : 92,069.04 = 21,937.04 : x
  2. Step 2: Convert to fraction form
    61,381.88/92,069.04 = 21,937.04/x
  3. Step 3: Cross multiply
    61,381.88x = 92,069.04 × 21,937.04
  4. Step 4: Simplify right side
    61,381.88x = 2,019,722,213.24
  5. Step 5: Solve for x
    x = 2,019,722,213.24/61,381.88
  6. Step 6: Final answer
    x = 32,904.21

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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.