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Finding the Fourth Proportional to 5,881.14, 8,821.05 and 1,721.18

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Solution

The fourth proportional to 5,881.14, 8,821.05 and 1,721.18 is: 2,581.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881.14 : 8,821.05 = 1,721.18 : x
  2. Step 2: Convert to fraction form
    5,881.14/8,821.05 = 1,721.18/x
  3. Step 3: Cross multiply
    5,881.14x = 8,821.05 × 1,721.18
  4. Step 4: Simplify right side
    5,881.14x = 15,182,640.12
  5. Step 5: Solve for x
    x = 15,182,640.12/5,881.14
  6. Step 6: Final answer
    x = 2,581.58

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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.