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Finding the Fourth Proportional to 39,310.75, 54,250.05 and 22,543.75

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Solution

The fourth proportional to 39,310.75, 54,250.05 and 22,543.75 is: 31,111.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,310.75 : 54,250.05 = 22,543.75 : x
  2. Step 2: Convert to fraction form
    39,310.75/54,250.05 = 22,543.75/x
  3. Step 3: Cross multiply
    39,310.75x = 54,250.05 × 22,543.75
  4. Step 4: Simplify right side
    39,310.75x = 1,222,999,564.69
  5. Step 5: Solve for x
    x = 1,222,999,564.69/39,310.75
  6. Step 6: Final answer
    x = 31,111.07

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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.