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Finding the Fourth Proportional to 15,617.52, 23,429.88 and 5,229

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Solution

The fourth proportional to 15,617.52, 23,429.88 and 5,229 is: 7,844.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.52 : 23,429.88 = 5,229 : x
  2. Step 2: Convert to fraction form
    15,617.52/23,429.88 = 5,229/x
  3. Step 3: Cross multiply
    15,617.52x = 23,429.88 × 5,229
  4. Step 4: Simplify right side
    15,617.52x = 122,514,842.52
  5. Step 5: Solve for x
    x = 122,514,842.52/15,617.52
  6. Step 6: Final answer
    x = 7,844.71

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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.