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Finding the Fourth Proportional to 18,922.47, 26,113.02 and 10,538.97

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Solution

The fourth proportional to 18,922.47, 26,113.02 and 10,538.97 is: 14,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.47 : 26,113.02 = 10,538.97 : x
  2. Step 2: Convert to fraction form
    18,922.47/26,113.02 = 10,538.97/x
  3. Step 3: Cross multiply
    18,922.47x = 26,113.02 × 10,538.97
  4. Step 4: Simplify right side
    18,922.47x = 275,204,281.69
  5. Step 5: Solve for x
    x = 275,204,281.69/18,922.47
  6. Step 6: Final answer
    x = 14,543.78

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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.