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Finding the Fourth Proportional to 61,963.20, 92,947.68 and 20,410.56

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Solution

The fourth proportional to 61,963.20, 92,947.68 and 20,410.56 is: 30,616.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,963.20 : 92,947.68 = 20,410.56 : x
  2. Step 2: Convert to fraction form
    61,963.20/92,947.68 = 20,410.56/x
  3. Step 3: Cross multiply
    61,963.20x = 92,947.68 × 20,410.56
  4. Step 4: Simplify right side
    61,963.20x = 1,897,114,199.50
  5. Step 5: Solve for x
    x = 1,897,114,199.50/61,963.20
  6. Step 6: Final answer
    x = 30,616.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.