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Finding the Fourth Proportional to 14,891.97, 20,552.55 and 8,519.15

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Solution

The fourth proportional to 14,891.97, 20,552.55 and 8,519.15 is: 11,757.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,891.97 : 20,552.55 = 8,519.15 : x
  2. Step 2: Convert to fraction form
    14,891.97/20,552.55 = 8,519.15/x
  3. Step 3: Cross multiply
    14,891.97x = 20,552.55 × 8,519.15
  4. Step 4: Simplify right side
    14,891.97x = 175,090,153.57
  5. Step 5: Solve for x
    x = 175,090,153.57/14,891.97
  6. Step 6: Final answer
    x = 11,757.35

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1.5x scale

Why These Related Problems?

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