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Finding the Fourth Proportional to 3,393.32, 5,091.59 and 1,749.02

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Solution

The fourth proportional to 3,393.32, 5,091.59 and 1,749.02 is: 2,624.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.32 : 5,091.59 = 1,749.02 : x
  2. Step 2: Convert to fraction form
    3,393.32/5,091.59 = 1,749.02/x
  3. Step 3: Cross multiply
    3,393.32x = 5,091.59 × 1,749.02
  4. Step 4: Simplify right side
    3,393.32x = 8,905,271.66
  5. Step 5: Solve for x
    x = 8,905,271.66/3,393.32
  6. Step 6: Final answer
    x = 2,624.36

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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.