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Finding the Fourth Proportional to 60,969.31, 91,470.44 and 25,418.86

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Solution

The fourth proportional to 60,969.31, 91,470.44 and 25,418.86 is: 38,135.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,969.31 : 91,470.44 = 25,418.86 : x
  2. Step 2: Convert to fraction form
    60,969.31/91,470.44 = 25,418.86/x
  3. Step 3: Cross multiply
    60,969.31x = 91,470.44 × 25,418.86
  4. Step 4: Simplify right side
    60,969.31x = 2,325,074,586.40
  5. Step 5: Solve for x
    x = 2,325,074,586.40/60,969.31
  6. Step 6: Final answer
    x = 38,135.16

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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.