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Finding the Fourth Proportional to 3,713.76, 5,568.60 and 1,764.84

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Solution

The fourth proportional to 3,713.76, 5,568.60 and 1,764.84 is: 2,646.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.76 : 5,568.60 = 1,764.84 : x
  2. Step 2: Convert to fraction form
    3,713.76/5,568.60 = 1,764.84/x
  3. Step 3: Cross multiply
    3,713.76x = 5,568.60 × 1,764.84
  4. Step 4: Simplify right side
    3,713.76x = 9,827,688.02
  5. Step 5: Solve for x
    x = 9,827,688.02/3,713.76
  6. Step 6: Final answer
    x = 2,646.29

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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.