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Finding the Fourth Proportional to 5,810.72, 8,716.62 and 3,340.76

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Solution

The fourth proportional to 5,810.72, 8,716.62 and 3,340.76 is: 5,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.72 : 8,716.62 = 3,340.76 : x
  2. Step 2: Convert to fraction form
    5,810.72/8,716.62 = 3,340.76/x
  3. Step 3: Cross multiply
    5,810.72x = 8,716.62 × 3,340.76
  4. Step 4: Simplify right side
    5,810.72x = 29,120,135.43
  5. Step 5: Solve for x
    x = 29,120,135.43/5,810.72
  6. Step 6: Final answer
    x = 5,011.45

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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.