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Finding the Fourth Proportional to 8,567.84, 12,851.52 and 2,724.80

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Solution

The fourth proportional to 8,567.84, 12,851.52 and 2,724.80 is: 4,087.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.84 : 12,851.52 = 2,724.80 : x
  2. Step 2: Convert to fraction form
    8,567.84/12,851.52 = 2,724.80/x
  3. Step 3: Cross multiply
    8,567.84x = 12,851.52 × 2,724.80
  4. Step 4: Simplify right side
    8,567.84x = 35,017,821.70
  5. Step 5: Solve for x
    x = 35,017,821.70/8,567.84
  6. Step 6: Final answer
    x = 4,087.12

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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.