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Finding the Fourth Proportional to 21,662.25, 32,488.38 and 6,868.41

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Solution

The fourth proportional to 21,662.25, 32,488.38 and 6,868.41 is: 10,301.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,662.25 : 32,488.38 = 6,868.41 : x
  2. Step 2: Convert to fraction form
    21,662.25/32,488.38 = 6,868.41/x
  3. Step 3: Cross multiply
    21,662.25x = 32,488.38 × 6,868.41
  4. Step 4: Simplify right side
    21,662.25x = 223,143,514.08
  5. Step 5: Solve for x
    x = 223,143,514.08/21,662.25
  6. Step 6: Final answer
    x = 10,301.03

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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.