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Finding the Fourth Proportional to 41,390.61, 57,130.03 and 25,488.39

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Solution

The fourth proportional to 41,390.61, 57,130.03 and 25,488.39 is: 35,180.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,390.61 : 57,130.03 = 25,488.39 : x
  2. Step 2: Convert to fraction form
    41,390.61/57,130.03 = 25,488.39/x
  3. Step 3: Cross multiply
    41,390.61x = 57,130.03 × 25,488.39
  4. Step 4: Simplify right side
    41,390.61x = 1,456,152,072.26
  5. Step 5: Solve for x
    x = 1,456,152,072.26/41,390.61
  6. Step 6: Final answer
    x = 35,180.73

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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.