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Finding the Fourth Proportional to 8,564.52, 12,846.99 and 2,721.18

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Solution

The fourth proportional to 8,564.52, 12,846.99 and 2,721.18 is: 4,081.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,564.52 : 12,846.99 = 2,721.18 : x
  2. Step 2: Convert to fraction form
    8,564.52/12,846.99 = 2,721.18/x
  3. Step 3: Cross multiply
    8,564.52x = 12,846.99 × 2,721.18
  4. Step 4: Simplify right side
    8,564.52x = 34,958,972.25
  5. Step 5: Solve for x
    x = 34,958,972.25/8,564.52
  6. Step 6: Final answer
    x = 4,081.84

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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.