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Finding the Fourth Proportional to 61,337.88, 91,989.81 and 16,961.22

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Solution

The fourth proportional to 61,337.88, 91,989.81 and 16,961.22 is: 25,437.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,337.88 : 91,989.81 = 16,961.22 : x
  2. Step 2: Convert to fraction form
    61,337.88/91,989.81 = 16,961.22/x
  3. Step 3: Cross multiply
    61,337.88x = 91,989.81 × 16,961.22
  4. Step 4: Simplify right side
    61,337.88x = 1,560,259,405.17
  5. Step 5: Solve for x
    x = 1,560,259,405.17/61,337.88
  6. Step 6: Final answer
    x = 25,437.13

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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.