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Finding the Fourth Proportional to 5,656.76, 8,487.32 and 2,734.84

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Solution

The fourth proportional to 5,656.76, 8,487.32 and 2,734.84 is: 4,103.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.76 : 8,487.32 = 2,734.84 : x
  2. Step 2: Convert to fraction form
    5,656.76/8,487.32 = 2,734.84/x
  3. Step 3: Cross multiply
    5,656.76x = 8,487.32 × 2,734.84
  4. Step 4: Simplify right side
    5,656.76x = 23,211,462.23
  5. Step 5: Solve for x
    x = 23,211,462.23/5,656.76
  6. Step 6: Final answer
    x = 4,103.31

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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.