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Finding the Fourth Proportional to 60,825.76, 91,287.78 and 25,790.02

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Solution

The fourth proportional to 60,825.76, 91,287.78 and 25,790.02 is: 38,705.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,825.76 : 91,287.78 = 25,790.02 : x
  2. Step 2: Convert to fraction form
    60,825.76/91,287.78 = 25,790.02/x
  3. Step 3: Cross multiply
    60,825.76x = 91,287.78 × 25,790.02
  4. Step 4: Simplify right side
    60,825.76x = 2,354,313,671.96
  5. Step 5: Solve for x
    x = 2,354,313,671.96/60,825.76
  6. Step 6: Final answer
    x = 38,705.87

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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.