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Finding the Fourth Proportional to 25,680.80, 38,524.80 and 10,094.80

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Solution

The fourth proportional to 25,680.80, 38,524.80 and 10,094.80 is: 15,143.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,680.80 : 38,524.80 = 10,094.80 : x
  2. Step 2: Convert to fraction form
    25,680.80/38,524.80 = 10,094.80/x
  3. Step 3: Cross multiply
    25,680.80x = 38,524.80 × 10,094.80
  4. Step 4: Simplify right side
    25,680.80x = 388,900,151.04
  5. Step 5: Solve for x
    x = 388,900,151.04/25,680.80
  6. Step 6: Final answer
    x = 15,143.62

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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.