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Finding the Fourth Proportional to 60,617.70, 90,926.55 and 18,498

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Solution

The fourth proportional to 60,617.70, 90,926.55 and 18,498 is: 27,747.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,617.70 : 90,926.55 = 18,498 : x
  2. Step 2: Convert to fraction form
    60,617.70/90,926.55 = 18,498/x
  3. Step 3: Cross multiply
    60,617.70x = 90,926.55 × 18,498
  4. Step 4: Simplify right side
    60,617.70x = 1,681,959,321.90
  5. Step 5: Solve for x
    x = 1,681,959,321.90/60,617.70
  6. Step 6: Final answer
    x = 27,747.00

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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.