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Finding the Fourth Proportional to 18,992.74, 26,209.74 and 10,494.85

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Solution

The fourth proportional to 18,992.74, 26,209.74 and 10,494.85 is: 14,482.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.74 : 26,209.74 = 10,494.85 : x
  2. Step 2: Convert to fraction form
    18,992.74/26,209.74 = 10,494.85/x
  3. Step 3: Cross multiply
    18,992.74x = 26,209.74 × 10,494.85
  4. Step 4: Simplify right side
    18,992.74x = 275,067,289.84
  5. Step 5: Solve for x
    x = 275,067,289.84/18,992.74
  6. Step 6: Final answer
    x = 14,482.76

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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.