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Finding the Fourth Proportional to 15,832.57, 21,849.18 and 8,758.96

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Solution

The fourth proportional to 15,832.57, 21,849.18 and 8,758.96 is: 12,087.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,832.57 : 21,849.18 = 8,758.96 : x
  2. Step 2: Convert to fraction form
    15,832.57/21,849.18 = 8,758.96/x
  3. Step 3: Cross multiply
    15,832.57x = 21,849.18 × 8,758.96
  4. Step 4: Simplify right side
    15,832.57x = 191,376,093.65
  5. Step 5: Solve for x
    x = 191,376,093.65/15,832.57
  6. Step 6: Final answer
    x = 12,087.49

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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.