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Finding the Fourth Proportional to 5,919.40, 8,892.30 and 4,947.40

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Solution

The fourth proportional to 5,919.40, 8,892.30 and 4,947.40 is: 7,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.40 : 8,892.30 = 4,947.40 : x
  2. Step 2: Convert to fraction form
    5,919.40/8,892.30 = 4,947.40/x
  3. Step 3: Cross multiply
    5,919.40x = 8,892.30 × 4,947.40
  4. Step 4: Simplify right side
    5,919.40x = 43,993,765.02
  5. Step 5: Solve for x
    x = 43,993,765.02/5,919.40
  6. Step 6: Final answer
    x = 7,432.13

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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.