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Finding the Fourth Proportional to 2,905.88, 4,010.11 and 1,663.88

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Solution

The fourth proportional to 2,905.88, 4,010.11 and 1,663.88 is: 2,296.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.88 : 4,010.11 = 1,663.88 : x
  2. Step 2: Convert to fraction form
    2,905.88/4,010.11 = 1,663.88/x
  3. Step 3: Cross multiply
    2,905.88x = 4,010.11 × 1,663.88
  4. Step 4: Simplify right side
    2,905.88x = 6,672,317.62
  5. Step 5: Solve for x
    x = 6,672,317.62/2,905.88
  6. Step 6: Final answer
    x = 2,296.15

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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.