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Finding the Fourth Proportional to 40,273, 55,576.74 and 22,609

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Solution

The fourth proportional to 40,273, 55,576.74 and 22,609 is: 31,200.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,273 : 55,576.74 = 22,609 : x
  2. Step 2: Convert to fraction form
    40,273/55,576.74 = 22,609/x
  3. Step 3: Cross multiply
    40,273x = 55,576.74 × 22,609
  4. Step 4: Simplify right side
    40,273x = 1,256,534,514.66
  5. Step 5: Solve for x
    x = 1,256,534,514.66/40,273
  6. Step 6: Final answer
    x = 31,200.42

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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.