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Finding the Fourth Proportional to 29,367.99, 40,528.22 and 15,939.41

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Solution

The fourth proportional to 29,367.99, 40,528.22 and 15,939.41 is: 21,996.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,367.99 : 40,528.22 = 15,939.41 : x
  2. Step 2: Convert to fraction form
    29,367.99/40,528.22 = 15,939.41/x
  3. Step 3: Cross multiply
    29,367.99x = 40,528.22 × 15,939.41
  4. Step 4: Simplify right side
    29,367.99x = 645,995,632.81
  5. Step 5: Solve for x
    x = 645,995,632.81/29,367.99
  6. Step 6: Final answer
    x = 21,996.59

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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.