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Finding the Fourth Proportional to 60,447.72, 90,701.28 and 27,191.28

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Solution

The fourth proportional to 60,447.72, 90,701.28 and 27,191.28 is: 40,800.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,447.72 : 90,701.28 = 27,191.28 : x
  2. Step 2: Convert to fraction form
    60,447.72/90,701.28 = 27,191.28/x
  3. Step 3: Cross multiply
    60,447.72x = 90,701.28 × 27,191.28
  4. Step 4: Simplify right side
    60,447.72x = 2,466,283,900.84
  5. Step 5: Solve for x
    x = 2,466,283,900.84/60,447.72
  6. Step 6: Final answer
    x = 40,800.28

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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.