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Finding the Fourth Proportional to 18,716.52, 28,097.10 and 14,824.20

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Solution

The fourth proportional to 18,716.52, 28,097.10 and 14,824.20 is: 22,253.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716.52 : 28,097.10 = 14,824.20 : x
  2. Step 2: Convert to fraction form
    18,716.52/28,097.10 = 14,824.20/x
  3. Step 3: Cross multiply
    18,716.52x = 28,097.10 × 14,824.20
  4. Step 4: Simplify right side
    18,716.52x = 416,517,029.82
  5. Step 5: Solve for x
    x = 416,517,029.82/18,716.52
  6. Step 6: Final answer
    x = 22,253.98

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1.5x scale

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.