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Finding the Fourth Proportional to 29,348.96, 40,501.22 and 15,919.96

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Solution

The fourth proportional to 29,348.96, 40,501.22 and 15,919.96 is: 21,969.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,348.96 : 40,501.22 = 15,919.96 : x
  2. Step 2: Convert to fraction form
    29,348.96/40,501.22 = 15,919.96/x
  3. Step 3: Cross multiply
    29,348.96x = 40,501.22 × 15,919.96
  4. Step 4: Simplify right side
    29,348.96x = 644,777,802.35
  5. Step 5: Solve for x
    x = 644,777,802.35/29,348.96
  6. Step 6: Final answer
    x = 21,969.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.