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Finding the Fourth Proportional to 21,882.26, 32,819.70 and 7,089.02

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Solution

The fourth proportional to 21,882.26, 32,819.70 and 7,089.02 is: 10,632.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,882.26 : 32,819.70 = 7,089.02 : x
  2. Step 2: Convert to fraction form
    21,882.26/32,819.70 = 7,089.02/x
  3. Step 3: Cross multiply
    21,882.26x = 32,819.70 × 7,089.02
  4. Step 4: Simplify right side
    21,882.26x = 232,659,509.69
  5. Step 5: Solve for x
    x = 232,659,509.69/21,882.26
  6. Step 6: Final answer
    x = 10,632.33

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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.