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Finding the Fourth Proportional to 45,047.52, 67,401.60 and 27,655.44

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Solution

The fourth proportional to 45,047.52, 67,401.60 and 27,655.44 is: 41,378.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,047.52 : 67,401.60 = 27,655.44 : x
  2. Step 2: Convert to fraction form
    45,047.52/67,401.60 = 27,655.44/x
  3. Step 3: Cross multiply
    45,047.52x = 67,401.60 × 27,655.44
  4. Step 4: Simplify right side
    45,047.52x = 1,864,020,904.70
  5. Step 5: Solve for x
    x = 1,864,020,904.70/45,047.52
  6. Step 6: Final answer
    x = 41,378.99

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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.