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Finding the Fourth Proportional to 19,101.92, 28,647.95 and 5,947.52

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Solution

The fourth proportional to 19,101.92, 28,647.95 and 5,947.52 is: 8,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.92 : 28,647.95 = 5,947.52 : x
  2. Step 2: Convert to fraction form
    19,101.92/28,647.95 = 5,947.52/x
  3. Step 3: Cross multiply
    19,101.92x = 28,647.95 × 5,947.52
  4. Step 4: Simplify right side
    19,101.92x = 170,384,082.61
  5. Step 5: Solve for x
    x = 170,384,082.61/19,101.92
  6. Step 6: Final answer
    x = 8,919.74

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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.