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Finding the Fourth Proportional to 25,463.36, 38,195.20 and 7,932.80

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Solution

The fourth proportional to 25,463.36, 38,195.20 and 7,932.80 is: 11,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,463.36 : 38,195.20 = 7,932.80 : x
  2. Step 2: Convert to fraction form
    25,463.36/38,195.20 = 7,932.80/x
  3. Step 3: Cross multiply
    25,463.36x = 38,195.20 × 7,932.80
  4. Step 4: Simplify right side
    25,463.36x = 302,994,882.56
  5. Step 5: Solve for x
    x = 302,994,882.56/25,463.36
  6. Step 6: Final answer
    x = 11,899.25

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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.