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Finding the Fourth Proportional to 5,756.99, 8,635.23 and 1,808.15

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Solution

The fourth proportional to 5,756.99, 8,635.23 and 1,808.15 is: 2,712.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,756.99 : 8,635.23 = 1,808.15 : x
  2. Step 2: Convert to fraction form
    5,756.99/8,635.23 = 1,808.15/x
  3. Step 3: Cross multiply
    5,756.99x = 8,635.23 × 1,808.15
  4. Step 4: Simplify right side
    5,756.99x = 15,613,791.12
  5. Step 5: Solve for x
    x = 15,613,791.12/5,756.99
  6. Step 6: Final answer
    x = 2,712.14

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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.