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Finding the Fourth Proportional to 27,621.66, 41,404.12 and 15,751.16

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Solution

The fourth proportional to 27,621.66, 41,404.12 and 15,751.16 is: 23,610.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.66 : 41,404.12 = 15,751.16 : x
  2. Step 2: Convert to fraction form
    27,621.66/41,404.12 = 15,751.16/x
  3. Step 3: Cross multiply
    27,621.66x = 41,404.12 × 15,751.16
  4. Step 4: Simplify right side
    27,621.66x = 652,162,918.78
  5. Step 5: Solve for x
    x = 652,162,918.78/27,621.66
  6. Step 6: Final answer
    x = 23,610.56

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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.