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Finding the Fourth Proportional to 15,175.84, 20,942.02 and 11,195.52

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Solution

The fourth proportional to 15,175.84, 20,942.02 and 11,195.52 is: 15,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,175.84 : 20,942.02 = 11,195.52 : x
  2. Step 2: Convert to fraction form
    15,175.84/20,942.02 = 11,195.52/x
  3. Step 3: Cross multiply
    15,175.84x = 20,942.02 × 11,195.52
  4. Step 4: Simplify right side
    15,175.84x = 234,456,803.75
  5. Step 5: Solve for x
    x = 234,456,803.75/15,175.84
  6. Step 6: Final answer
    x = 15,449.35

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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.