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Finding the Fourth Proportional to 2,486.84, 3,721.14 and 2,353.32

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Solution

The fourth proportional to 2,486.84, 3,721.14 and 2,353.32 is: 3,521.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.84 : 3,721.14 = 2,353.32 : x
  2. Step 2: Convert to fraction form
    2,486.84/3,721.14 = 2,353.32/x
  3. Step 3: Cross multiply
    2,486.84x = 3,721.14 × 2,353.32
  4. Step 4: Simplify right side
    2,486.84x = 8,757,033.18
  5. Step 5: Solve for x
    x = 8,757,033.18/2,486.84
  6. Step 6: Final answer
    x = 3,521.36

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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.