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Finding the Fourth Proportional to 25,803.76, 35,600.78 and 15,046.20

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Solution

The fourth proportional to 25,803.76, 35,600.78 and 15,046.20 is: 20,758.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,803.76 : 35,600.78 = 15,046.20 : x
  2. Step 2: Convert to fraction form
    25,803.76/35,600.78 = 15,046.20/x
  3. Step 3: Cross multiply
    25,803.76x = 35,600.78 × 15,046.20
  4. Step 4: Simplify right side
    25,803.76x = 535,656,493.65
  5. Step 5: Solve for x
    x = 535,656,493.65/25,803.76
  6. Step 6: Final answer
    x = 20,758.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.