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Finding the Fourth Proportional to 17,721, 26,581.50 and 7,333.02

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Solution

The fourth proportional to 17,721, 26,581.50 and 7,333.02 is: 10,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,721 : 26,581.50 = 7,333.02 : x
  2. Step 2: Convert to fraction form
    17,721/26,581.50 = 7,333.02/x
  3. Step 3: Cross multiply
    17,721x = 26,581.50 × 7,333.02
  4. Step 4: Simplify right side
    17,721x = 194,922,671.13
  5. Step 5: Solve for x
    x = 194,922,671.13/17,721
  6. Step 6: Final answer
    x = 10,999.53

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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.