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Finding the Fourth Proportional to 5,811.68, 8,712.48 and 2,346.68

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Solution

The fourth proportional to 5,811.68, 8,712.48 and 2,346.68 is: 3,517.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.68 : 8,712.48 = 2,346.68 : x
  2. Step 2: Convert to fraction form
    5,811.68/8,712.48 = 2,346.68/x
  3. Step 3: Cross multiply
    5,811.68x = 8,712.48 × 2,346.68
  4. Step 4: Simplify right side
    5,811.68x = 20,445,402.57
  5. Step 5: Solve for x
    x = 20,445,402.57/5,811.68
  6. Step 6: Final answer
    x = 3,517.98

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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.