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Finding the Fourth Proportional to 3,193.19, 4,791.95 and 1,113.19

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Solution

The fourth proportional to 3,193.19, 4,791.95 and 1,113.19 is: 1,670.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.19 : 4,791.95 = 1,113.19 : x
  2. Step 2: Convert to fraction form
    3,193.19/4,791.95 = 1,113.19/x
  3. Step 3: Cross multiply
    3,193.19x = 4,791.95 × 1,113.19
  4. Step 4: Simplify right side
    3,193.19x = 5,334,350.82
  5. Step 5: Solve for x
    x = 5,334,350.82/3,193.19
  6. Step 6: Final answer
    x = 1,670.54

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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.