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Finding the Fourth Proportional to 3,472.93, 5,206.22 and 1,392.58

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Solution

The fourth proportional to 3,472.93, 5,206.22 and 1,392.58 is: 2,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.93 : 5,206.22 = 1,392.58 : x
  2. Step 2: Convert to fraction form
    3,472.93/5,206.22 = 1,392.58/x
  3. Step 3: Cross multiply
    3,472.93x = 5,206.22 × 1,392.58
  4. Step 4: Simplify right side
    3,472.93x = 7,250,077.85
  5. Step 5: Solve for x
    x = 7,250,077.85/3,472.93
  6. Step 6: Final answer
    x = 2,087.60

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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.