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Finding the Fourth Proportional to 38,310.47, 52,874.73 and 22,391.81

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Solution

The fourth proportional to 38,310.47, 52,874.73 and 22,391.81 is: 30,904.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,310.47 : 52,874.73 = 22,391.81 : x
  2. Step 2: Convert to fraction form
    38,310.47/52,874.73 = 22,391.81/x
  3. Step 3: Cross multiply
    38,310.47x = 52,874.73 × 22,391.81
  4. Step 4: Simplify right side
    38,310.47x = 1,183,960,643.59
  5. Step 5: Solve for x
    x = 1,183,960,643.59/38,310.47
  6. Step 6: Final answer
    x = 30,904.37

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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.