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Finding the Fourth Proportional to 5,919.72, 8,881.11 and 1,759.70

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Solution

The fourth proportional to 5,919.72, 8,881.11 and 1,759.70 is: 2,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.72 : 8,881.11 = 1,759.70 : x
  2. Step 2: Convert to fraction form
    5,919.72/8,881.11 = 1,759.70/x
  3. Step 3: Cross multiply
    5,919.72x = 8,881.11 × 1,759.70
  4. Step 4: Simplify right side
    5,919.72x = 15,628,111.47
  5. Step 5: Solve for x
    x = 15,628,111.47/5,919.72
  6. Step 6: Final answer
    x = 2,640.01

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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.