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Finding the Fourth Proportional to 1,996.92, 2,756.43 and 1,927.26

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Solution

The fourth proportional to 1,996.92, 2,756.43 and 1,927.26 is: 2,660.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.92 : 2,756.43 = 1,927.26 : x
  2. Step 2: Convert to fraction form
    1,996.92/2,756.43 = 1,927.26/x
  3. Step 3: Cross multiply
    1,996.92x = 2,756.43 × 1,927.26
  4. Step 4: Simplify right side
    1,996.92x = 5,312,357.28
  5. Step 5: Solve for x
    x = 5,312,357.28/1,996.92
  6. Step 6: Final answer
    x = 2,660.28

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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.