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Finding the Fourth Proportional to 25,834.77, 38,752.89 and 7,115.07

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Solution

The fourth proportional to 25,834.77, 38,752.89 and 7,115.07 is: 10,672.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,834.77 : 38,752.89 = 7,115.07 : x
  2. Step 2: Convert to fraction form
    25,834.77/38,752.89 = 7,115.07/x
  3. Step 3: Cross multiply
    25,834.77x = 38,752.89 × 7,115.07
  4. Step 4: Simplify right side
    25,834.77x = 275,729,525.05
  5. Step 5: Solve for x
    x = 275,729,525.05/25,834.77
  6. Step 6: Final answer
    x = 10,672.81

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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.