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Finding the Fourth Proportional to 25,598.80, 38,398.21 and 8,069.99

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Solution

The fourth proportional to 25,598.80, 38,398.21 and 8,069.99 is: 12,104.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,598.80 : 38,398.21 = 8,069.99 : x
  2. Step 2: Convert to fraction form
    25,598.80/38,398.21 = 8,069.99/x
  3. Step 3: Cross multiply
    25,598.80x = 38,398.21 × 8,069.99
  4. Step 4: Simplify right side
    25,598.80x = 309,873,170.72
  5. Step 5: Solve for x
    x = 309,873,170.72/25,598.80
  6. Step 6: Final answer
    x = 12,104.99

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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.