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Finding the Fourth Proportional to 21,669.26, 32,505.01 and 6,879.33

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Solution

The fourth proportional to 21,669.26, 32,505.01 and 6,879.33 is: 10,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,669.26 : 32,505.01 = 6,879.33 : x
  2. Step 2: Convert to fraction form
    21,669.26/32,505.01 = 6,879.33/x
  3. Step 3: Cross multiply
    21,669.26x = 32,505.01 × 6,879.33
  4. Step 4: Simplify right side
    21,669.26x = 223,612,673.24
  5. Step 5: Solve for x
    x = 223,612,673.24/21,669.26
  6. Step 6: Final answer
    x = 10,319.35

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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.