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Finding the Fourth Proportional to 25,934.60, 35,790.21 and 15,324.21

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Solution

The fourth proportional to 25,934.60, 35,790.21 and 15,324.21 is: 21,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,934.60 : 35,790.21 = 15,324.21 : x
  2. Step 2: Convert to fraction form
    25,934.60/35,790.21 = 15,324.21/x
  3. Step 3: Cross multiply
    25,934.60x = 35,790.21 × 15,324.21
  4. Step 4: Simplify right side
    25,934.60x = 548,456,438.41
  5. Step 5: Solve for x
    x = 548,456,438.41/25,934.60
  6. Step 6: Final answer
    x = 21,147.68

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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.