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Finding the Fourth Proportional to 18,559.50, 27,769.50 and 13,023.65

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Solution

The fourth proportional to 18,559.50, 27,769.50 and 13,023.65 is: 19,486.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.50 : 27,769.50 = 13,023.65 : x
  2. Step 2: Convert to fraction form
    18,559.50/27,769.50 = 13,023.65/x
  3. Step 3: Cross multiply
    18,559.50x = 27,769.50 × 13,023.65
  4. Step 4: Simplify right side
    18,559.50x = 361,660,248.68
  5. Step 5: Solve for x
    x = 361,660,248.68/18,559.50
  6. Step 6: Final answer
    x = 19,486.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.