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Finding the Fourth Proportional to 23,689.99, 35,540.79 and 8,899.75

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Solution

The fourth proportional to 23,689.99, 35,540.79 and 8,899.75 is: 13,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,689.99 : 35,540.79 = 8,899.75 : x
  2. Step 2: Convert to fraction form
    23,689.99/35,540.79 = 8,899.75/x
  3. Step 3: Cross multiply
    23,689.99x = 35,540.79 × 8,899.75
  4. Step 4: Simplify right side
    23,689.99x = 316,304,145.80
  5. Step 5: Solve for x
    x = 316,304,145.80/23,689.99
  6. Step 6: Final answer
    x = 13,351.81

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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.