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Finding the Fourth Proportional to 55,472.99, 76,552.73 and 29,979.28

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Solution

The fourth proportional to 55,472.99, 76,552.73 and 29,979.28 is: 41,371.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,472.99 : 76,552.73 = 29,979.28 : x
  2. Step 2: Convert to fraction form
    55,472.99/76,552.73 = 29,979.28/x
  3. Step 3: Cross multiply
    55,472.99x = 76,552.73 × 29,979.28
  4. Step 4: Simplify right side
    55,472.99x = 2,294,995,785.65
  5. Step 5: Solve for x
    x = 2,294,995,785.65/55,472.99
  6. Step 6: Final answer
    x = 41,371.41

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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.