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Finding the Fourth Proportional to 40,048.96, 55,266 and 23,919

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Solution

The fourth proportional to 40,048.96, 55,266 and 23,919 is: 33,007.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,048.96 : 55,266 = 23,919 : x
  2. Step 2: Convert to fraction form
    40,048.96/55,266 = 23,919/x
  3. Step 3: Cross multiply
    40,048.96x = 55,266 × 23,919
  4. Step 4: Simplify right side
    40,048.96x = 1,321,907,454
  5. Step 5: Solve for x
    x = 1,321,907,454/40,048.96
  6. Step 6: Final answer
    x = 33,007.29

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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.