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Finding the Fourth Proportional to 2,841.93, 3,922.17 and 1,663.99

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Solution

The fourth proportional to 2,841.93, 3,922.17 and 1,663.99 is: 2,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.93 : 3,922.17 = 1,663.99 : x
  2. Step 2: Convert to fraction form
    2,841.93/3,922.17 = 1,663.99/x
  3. Step 3: Cross multiply
    2,841.93x = 3,922.17 × 1,663.99
  4. Step 4: Simplify right side
    2,841.93x = 6,526,435.61
  5. Step 5: Solve for x
    x = 6,526,435.61/2,841.93
  6. Step 6: Final answer
    x = 2,296.48

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1.5x scale

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.