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Finding the Fourth Proportional to 1,999.56, 2,761.14 and 1,934.28

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Solution

The fourth proportional to 1,999.56, 2,761.14 and 1,934.28 is: 2,671.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.56 : 2,761.14 = 1,934.28 : x
  2. Step 2: Convert to fraction form
    1,999.56/2,761.14 = 1,934.28/x
  3. Step 3: Cross multiply
    1,999.56x = 2,761.14 × 1,934.28
  4. Step 4: Simplify right side
    1,999.56x = 5,340,817.88
  5. Step 5: Solve for x
    x = 5,340,817.88/1,999.56
  6. Step 6: Final answer
    x = 2,671.00

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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.