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Finding the Fourth Proportional to 3,362.44, 5,044.20 and 1,415.20

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Solution

The fourth proportional to 3,362.44, 5,044.20 and 1,415.20 is: 2,123.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,362.44 : 5,044.20 = 1,415.20 : x
  2. Step 2: Convert to fraction form
    3,362.44/5,044.20 = 1,415.20/x
  3. Step 3: Cross multiply
    3,362.44x = 5,044.20 × 1,415.20
  4. Step 4: Simplify right side
    3,362.44x = 7,138,551.84
  5. Step 5: Solve for x
    x = 7,138,551.84/3,362.44
  6. Step 6: Final answer
    x = 2,123.03

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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.