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Finding the Fourth Proportional to 22,668.61, 34,009.29 and 7,879.03

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Solution

The fourth proportional to 22,668.61, 34,009.29 and 7,879.03 is: 11,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,668.61 : 34,009.29 = 7,879.03 : x
  2. Step 2: Convert to fraction form
    22,668.61/34,009.29 = 7,879.03/x
  3. Step 3: Cross multiply
    22,668.61x = 34,009.29 × 7,879.03
  4. Step 4: Simplify right side
    22,668.61x = 267,960,216.19
  5. Step 5: Solve for x
    x = 267,960,216.19/22,668.61
  6. Step 6: Final answer
    x = 11,820.76

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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.