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Finding the Fourth Proportional to 21,843.60, 32,758.36 and 7,049.05

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Solution

The fourth proportional to 21,843.60, 32,758.36 and 7,049.05 is: 10,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843.60 : 32,758.36 = 7,049.05 : x
  2. Step 2: Convert to fraction form
    21,843.60/32,758.36 = 7,049.05/x
  3. Step 3: Cross multiply
    21,843.60x = 32,758.36 × 7,049.05
  4. Step 4: Simplify right side
    21,843.60x = 230,915,218.04
  5. Step 5: Solve for x
    x = 230,915,218.04/21,843.60
  6. Step 6: Final answer
    x = 10,571.30

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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.