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Finding the Fourth Proportional to 61,405.81, 92,131.25 and 25,876.07

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Solution

The fourth proportional to 61,405.81, 92,131.25 and 25,876.07 is: 38,823.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,405.81 : 92,131.25 = 25,876.07 : x
  2. Step 2: Convert to fraction form
    61,405.81/92,131.25 = 25,876.07/x
  3. Step 3: Cross multiply
    61,405.81x = 92,131.25 × 25,876.07
  4. Step 4: Simplify right side
    61,405.81x = 2,383,995,020.66
  5. Step 5: Solve for x
    x = 2,383,995,020.66/61,405.81
  6. Step 6: Final answer
    x = 38,823.60

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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.