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Finding the Fourth Proportional to 25,799.72, 38,703.22 and 8,265.44

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Solution

The fourth proportional to 25,799.72, 38,703.22 and 8,265.44 is: 12,399.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,799.72 : 38,703.22 = 8,265.44 : x
  2. Step 2: Convert to fraction form
    25,799.72/38,703.22 = 8,265.44/x
  3. Step 3: Cross multiply
    25,799.72x = 38,703.22 × 8,265.44
  4. Step 4: Simplify right side
    25,799.72x = 319,899,218.81
  5. Step 5: Solve for x
    x = 319,899,218.81/25,799.72
  6. Step 6: Final answer
    x = 12,399.33

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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.