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Finding the Fourth Proportional to 25,957.38, 38,936.07 and 7,236.66

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Solution

The fourth proportional to 25,957.38, 38,936.07 and 7,236.66 is: 10,854.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,957.38 : 38,936.07 = 7,236.66 : x
  2. Step 2: Convert to fraction form
    25,957.38/38,936.07 = 7,236.66/x
  3. Step 3: Cross multiply
    25,957.38x = 38,936.07 × 7,236.66
  4. Step 4: Simplify right side
    25,957.38x = 281,767,100.33
  5. Step 5: Solve for x
    x = 281,767,100.33/25,957.38
  6. Step 6: Final answer
    x = 10,854.99

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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.