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Finding the Fourth Proportional to 25,863.80, 38,799.30 and 10,277.80

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Solution

The fourth proportional to 25,863.80, 38,799.30 and 10,277.80 is: 15,418.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,863.80 : 38,799.30 = 10,277.80 : x
  2. Step 2: Convert to fraction form
    25,863.80/38,799.30 = 10,277.80/x
  3. Step 3: Cross multiply
    25,863.80x = 38,799.30 × 10,277.80
  4. Step 4: Simplify right side
    25,863.80x = 398,771,445.54
  5. Step 5: Solve for x
    x = 398,771,445.54/25,863.80
  6. Step 6: Final answer
    x = 15,418.13

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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.