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Finding the Fourth Proportional to 25,950.93, 38,932.07 and 8,422.53

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Solution

The fourth proportional to 25,950.93, 38,932.07 and 8,422.53 is: 12,635.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,950.93 : 38,932.07 = 8,422.53 : x
  2. Step 2: Convert to fraction form
    25,950.93/38,932.07 = 8,422.53/x
  3. Step 3: Cross multiply
    25,950.93x = 38,932.07 × 8,422.53
  4. Step 4: Simplify right side
    25,950.93x = 327,906,485.42
  5. Step 5: Solve for x
    x = 327,906,485.42/25,950.93
  6. Step 6: Final answer
    x = 12,635.64

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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.