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Finding the Fourth Proportional to 40,338, 55,666.48 and 22,674

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Solution

The fourth proportional to 40,338, 55,666.48 and 22,674 is: 31,290.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,338 : 55,666.48 = 22,674 : x
  2. Step 2: Convert to fraction form
    40,338/55,666.48 = 22,674/x
  3. Step 3: Cross multiply
    40,338x = 55,666.48 × 22,674
  4. Step 4: Simplify right side
    40,338x = 1,262,181,767.52
  5. Step 5: Solve for x
    x = 1,262,181,767.52/40,338
  6. Step 6: Final answer
    x = 31,290.14

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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.