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Finding the Fourth Proportional to 5,761.80, 7,948.80 and 4,433.40

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Solution

The fourth proportional to 5,761.80, 7,948.80 and 4,433.40 is: 6,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,761.80 : 7,948.80 = 4,433.40 : x
  2. Step 2: Convert to fraction form
    5,761.80/7,948.80 = 4,433.40/x
  3. Step 3: Cross multiply
    5,761.80x = 7,948.80 × 4,433.40
  4. Step 4: Simplify right side
    5,761.80x = 35,240,209.92
  5. Step 5: Solve for x
    x = 35,240,209.92/5,761.80
  6. Step 6: Final answer
    x = 6,116.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.