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Finding the Fourth Proportional to 25,850.76, 38,769.06 and 7,126.38

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Solution

The fourth proportional to 25,850.76, 38,769.06 and 7,126.38 is: 10,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,850.76 : 38,769.06 = 7,126.38 : x
  2. Step 2: Convert to fraction form
    25,850.76/38,769.06 = 7,126.38/x
  3. Step 3: Cross multiply
    25,850.76x = 38,769.06 × 7,126.38
  4. Step 4: Simplify right side
    25,850.76x = 276,283,053.80
  5. Step 5: Solve for x
    x = 276,283,053.80/25,850.76
  6. Step 6: Final answer
    x = 10,687.62

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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.