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Finding the Fourth Proportional to 2,027.19, 3,041.61 and 728.76

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Solution

The fourth proportional to 2,027.19, 3,041.61 and 728.76 is: 1,093.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.19 : 3,041.61 = 728.76 : x
  2. Step 2: Convert to fraction form
    2,027.19/3,041.61 = 728.76/x
  3. Step 3: Cross multiply
    2,027.19x = 3,041.61 × 728.76
  4. Step 4: Simplify right side
    2,027.19x = 2,216,603.70
  5. Step 5: Solve for x
    x = 2,216,603.70/2,027.19
  6. Step 6: Final answer
    x = 1,093.44

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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.