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Finding the Fourth Proportional to 29,352.26, 40,505.80 and 15,923.20

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Solution

The fourth proportional to 29,352.26, 40,505.80 and 15,923.20 is: 21,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,352.26 : 40,505.80 = 15,923.20 : x
  2. Step 2: Convert to fraction form
    29,352.26/40,505.80 = 15,923.20/x
  3. Step 3: Cross multiply
    29,352.26x = 40,505.80 × 15,923.20
  4. Step 4: Simplify right side
    29,352.26x = 644,981,954.56
  5. Step 5: Solve for x
    x = 644,981,954.56/29,352.26
  6. Step 6: Final answer
    x = 21,973.84

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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.