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Finding the Fourth Proportional to 25,957.12, 38,936.96 and 7,237.12

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Solution

The fourth proportional to 25,957.12, 38,936.96 and 7,237.12 is: 10,856.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,957.12 : 38,936.96 = 7,237.12 : x
  2. Step 2: Convert to fraction form
    25,957.12/38,936.96 = 7,237.12/x
  3. Step 3: Cross multiply
    25,957.12x = 38,936.96 × 7,237.12
  4. Step 4: Simplify right side
    25,957.12x = 281,791,451.96
  5. Step 5: Solve for x
    x = 281,791,451.96/25,957.12
  6. Step 6: Final answer
    x = 10,856.04

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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.