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Finding the Fourth Proportional to 38,751.44, 58,149.48 and 21,897.80

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Solution

The fourth proportional to 38,751.44, 58,149.48 and 21,897.80 is: 32,859.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,751.44 : 58,149.48 = 21,897.80 : x
  2. Step 2: Convert to fraction form
    38,751.44/58,149.48 = 21,897.80/x
  3. Step 3: Cross multiply
    38,751.44x = 58,149.48 × 21,897.80
  4. Step 4: Simplify right side
    38,751.44x = 1,273,345,683.14
  5. Step 5: Solve for x
    x = 1,273,345,683.14/38,751.44
  6. Step 6: Final answer
    x = 32,859.31

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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.