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Finding the Fourth Proportional to 18,581.87, 25,641.25 and 11,026.89

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Solution

The fourth proportional to 18,581.87, 25,641.25 and 11,026.89 is: 15,216.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.87 : 25,641.25 = 11,026.89 : x
  2. Step 2: Convert to fraction form
    18,581.87/25,641.25 = 11,026.89/x
  3. Step 3: Cross multiply
    18,581.87x = 25,641.25 × 11,026.89
  4. Step 4: Simplify right side
    18,581.87x = 282,743,215.65
  5. Step 5: Solve for x
    x = 282,743,215.65/18,581.87
  6. Step 6: Final answer
    x = 15,216.08

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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.