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Finding the Fourth Proportional to 52,955.48, 79,443 and 17,418.80

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Solution

The fourth proportional to 52,955.48, 79,443 and 17,418.80 is: 26,131.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,955.48 : 79,443 = 17,418.80 : x
  2. Step 2: Convert to fraction form
    52,955.48/79,443 = 17,418.80/x
  3. Step 3: Cross multiply
    52,955.48x = 79,443 × 17,418.80
  4. Step 4: Simplify right side
    52,955.48x = 1,383,801,728.40
  5. Step 5: Solve for x
    x = 1,383,801,728.40/52,955.48
  6. Step 6: Final answer
    x = 26,131.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.