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Finding the Fourth Proportional to 15,167.73, 22,755.22 and 4,779.48

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Solution

The fourth proportional to 15,167.73, 22,755.22 and 4,779.48 is: 7,170.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167.73 : 22,755.22 = 4,779.48 : x
  2. Step 2: Convert to fraction form
    15,167.73/22,755.22 = 4,779.48/x
  3. Step 3: Cross multiply
    15,167.73x = 22,755.22 × 4,779.48
  4. Step 4: Simplify right side
    15,167.73x = 108,758,106.94
  5. Step 5: Solve for x
    x = 108,758,106.94/15,167.73
  6. Step 6: Final answer
    x = 7,170.36

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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.