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Finding the Fourth Proportional to 25,486.52, 38,230.79 and 7,956.35

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Solution

The fourth proportional to 25,486.52, 38,230.79 and 7,956.35 is: 11,934.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,486.52 : 38,230.79 = 7,956.35 : x
  2. Step 2: Convert to fraction form
    25,486.52/38,230.79 = 7,956.35/x
  3. Step 3: Cross multiply
    25,486.52x = 38,230.79 × 7,956.35
  4. Step 4: Simplify right side
    25,486.52x = 304,177,315.08
  5. Step 5: Solve for x
    x = 304,177,315.08/25,486.52
  6. Step 6: Final answer
    x = 11,934.83

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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.