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Finding the Fourth Proportional to 16,217.52, 22,382.52 and 15,216.84

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Solution

The fourth proportional to 16,217.52, 22,382.52 and 15,216.84 is: 21,001.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,217.52 : 22,382.52 = 15,216.84 : x
  2. Step 2: Convert to fraction form
    16,217.52/22,382.52 = 15,216.84/x
  3. Step 3: Cross multiply
    16,217.52x = 22,382.52 × 15,216.84
  4. Step 4: Simplify right side
    16,217.52x = 340,591,225.64
  5. Step 5: Solve for x
    x = 340,591,225.64/16,217.52
  6. Step 6: Final answer
    x = 21,001.44

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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.