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Finding the Fourth Proportional to 5,988.11, 8,970.21 and 2,821.22

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Solution

The fourth proportional to 5,988.11, 8,970.21 and 2,821.22 is: 4,226.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,988.11 : 8,970.21 = 2,821.22 : x
  2. Step 2: Convert to fraction form
    5,988.11/8,970.21 = 2,821.22/x
  3. Step 3: Cross multiply
    5,988.11x = 8,970.21 × 2,821.22
  4. Step 4: Simplify right side
    5,988.11x = 25,306,891.01
  5. Step 5: Solve for x
    x = 25,306,891.01/5,988.11
  6. Step 6: Final answer
    x = 4,226.19

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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.