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Finding the Fourth Proportional to 25,859.64, 38,788.20 and 8,329.08

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Solution

The fourth proportional to 25,859.64, 38,788.20 and 8,329.08 is: 12,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,859.64 : 38,788.20 = 8,329.08 : x
  2. Step 2: Convert to fraction form
    25,859.64/38,788.20 = 8,329.08/x
  3. Step 3: Cross multiply
    25,859.64x = 38,788.20 × 8,329.08
  4. Step 4: Simplify right side
    25,859.64x = 323,070,020.86
  5. Step 5: Solve for x
    x = 323,070,020.86/25,859.64
  6. Step 6: Final answer
    x = 12,493.21

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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.