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Finding the Fourth Proportional to 56,731.20, 85,096.80 and 25,627.20

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Solution

The fourth proportional to 56,731.20, 85,096.80 and 25,627.20 is: 38,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,731.20 : 85,096.80 = 25,627.20 : x
  2. Step 2: Convert to fraction form
    56,731.20/85,096.80 = 25,627.20/x
  3. Step 3: Cross multiply
    56,731.20x = 85,096.80 × 25,627.20
  4. Step 4: Simplify right side
    56,731.20x = 2,180,792,712.96
  5. Step 5: Solve for x
    x = 2,180,792,712.96/56,731.20
  6. Step 6: Final answer
    x = 38,440.80

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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.