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Finding the Fourth Proportional to 25,772.76, 38,660.66 and 8,241.22

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Solution

The fourth proportional to 25,772.76, 38,660.66 and 8,241.22 is: 12,362.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,772.76 : 38,660.66 = 8,241.22 : x
  2. Step 2: Convert to fraction form
    25,772.76/38,660.66 = 8,241.22/x
  3. Step 3: Cross multiply
    25,772.76x = 38,660.66 × 8,241.22
  4. Step 4: Simplify right side
    25,772.76x = 318,611,004.41
  5. Step 5: Solve for x
    x = 318,611,004.41/25,772.76
  6. Step 6: Final answer
    x = 12,362.32

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1.5x scale

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.