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Finding the Fourth Proportional to 2,135.85, 3,204.10 and 903.26

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Solution

The fourth proportional to 2,135.85, 3,204.10 and 903.26 is: 1,355.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.85 : 3,204.10 = 903.26 : x
  2. Step 2: Convert to fraction form
    2,135.85/3,204.10 = 903.26/x
  3. Step 3: Cross multiply
    2,135.85x = 3,204.10 × 903.26
  4. Step 4: Simplify right side
    2,135.85x = 2,894,135.37
  5. Step 5: Solve for x
    x = 2,894,135.37/2,135.85
  6. Step 6: Final answer
    x = 1,355.03

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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.