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Finding the Fourth Proportional to 15,163.56, 22,758.12 and 6,404.76

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Solution

The fourth proportional to 15,163.56, 22,758.12 and 6,404.76 is: 9,612.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.56 : 22,758.12 = 6,404.76 : x
  2. Step 2: Convert to fraction form
    15,163.56/22,758.12 = 6,404.76/x
  3. Step 3: Cross multiply
    15,163.56x = 22,758.12 × 6,404.76
  4. Step 4: Simplify right side
    15,163.56x = 145,760,296.65
  5. Step 5: Solve for x
    x = 145,760,296.65/15,163.56
  6. Step 6: Final answer
    x = 9,612.54

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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.