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Finding the Fourth Proportional to 3,859.11, 5,783.54 and 2,104.11

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Solution

The fourth proportional to 3,859.11, 5,783.54 and 2,104.11 is: 3,153.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.11 : 5,783.54 = 2,104.11 : x
  2. Step 2: Convert to fraction form
    3,859.11/5,783.54 = 2,104.11/x
  3. Step 3: Cross multiply
    3,859.11x = 5,783.54 × 2,104.11
  4. Step 4: Simplify right side
    3,859.11x = 12,169,193.83
  5. Step 5: Solve for x
    x = 12,169,193.83/3,859.11
  6. Step 6: Final answer
    x = 3,153.37

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1.5x scale

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.