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Finding the Fourth Proportional to 18,013, 24,860.82 and 10,561

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Solution

The fourth proportional to 18,013, 24,860.82 and 10,561 is: 14,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,013 : 24,860.82 = 10,561 : x
  2. Step 2: Convert to fraction form
    18,013/24,860.82 = 10,561/x
  3. Step 3: Cross multiply
    18,013x = 24,860.82 × 10,561
  4. Step 4: Simplify right side
    18,013x = 262,555,120.02
  5. Step 5: Solve for x
    x = 262,555,120.02/18,013
  6. Step 6: Final answer
    x = 14,575.87

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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.