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Finding the Fourth Proportional to 2,346.77, 3,520.96 and 886.34

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Solution

The fourth proportional to 2,346.77, 3,520.96 and 886.34 is: 1,329.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,346.77 : 3,520.96 = 886.34 : x
  2. Step 2: Convert to fraction form
    2,346.77/3,520.96 = 886.34/x
  3. Step 3: Cross multiply
    2,346.77x = 3,520.96 × 886.34
  4. Step 4: Simplify right side
    2,346.77x = 3,120,767.69
  5. Step 5: Solve for x
    x = 3,120,767.69/2,346.77
  6. Step 6: Final answer
    x = 1,329.81

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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.