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Finding the Fourth Proportional to 25,909.75, 38,864.64 and 7,441.75

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Solution

The fourth proportional to 25,909.75, 38,864.64 and 7,441.75 is: 11,162.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,909.75 : 38,864.64 = 7,441.75 : x
  2. Step 2: Convert to fraction form
    25,909.75/38,864.64 = 7,441.75/x
  3. Step 3: Cross multiply
    25,909.75x = 38,864.64 × 7,441.75
  4. Step 4: Simplify right side
    25,909.75x = 289,220,934.72
  5. Step 5: Solve for x
    x = 289,220,934.72/25,909.75
  6. Step 6: Final answer
    x = 11,162.63

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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.