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Finding the Fourth Proportional to 21,448.88, 32,174.22 and 5,866.48

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Solution

The fourth proportional to 21,448.88, 32,174.22 and 5,866.48 is: 8,799.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.88 : 32,174.22 = 5,866.48 : x
  2. Step 2: Convert to fraction form
    21,448.88/32,174.22 = 5,866.48/x
  3. Step 3: Cross multiply
    21,448.88x = 32,174.22 × 5,866.48
  4. Step 4: Simplify right side
    21,448.88x = 188,749,418.15
  5. Step 5: Solve for x
    x = 188,749,418.15/21,448.88
  6. Step 6: Final answer
    x = 8,799.97

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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.