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Finding the Fourth Proportional to 3,469.02, 4,787.25 and 1,897.11

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Solution

The fourth proportional to 3,469.02, 4,787.25 and 1,897.11 is: 2,618.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.02 : 4,787.25 = 1,897.11 : x
  2. Step 2: Convert to fraction form
    3,469.02/4,787.25 = 1,897.11/x
  3. Step 3: Cross multiply
    3,469.02x = 4,787.25 × 1,897.11
  4. Step 4: Simplify right side
    3,469.02x = 9,081,939.85
  5. Step 5: Solve for x
    x = 9,081,939.85/3,469.02
  6. Step 6: Final answer
    x = 2,618.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.