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Finding the Fourth Proportional to 3,605.96, 5,410.05 and 1,756.81

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Solution

The fourth proportional to 3,605.96, 5,410.05 and 1,756.81 is: 2,635.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.96 : 5,410.05 = 1,756.81 : x
  2. Step 2: Convert to fraction form
    3,605.96/5,410.05 = 1,756.81/x
  3. Step 3: Cross multiply
    3,605.96x = 5,410.05 × 1,756.81
  4. Step 4: Simplify right side
    3,605.96x = 9,504,430.12
  5. Step 5: Solve for x
    x = 9,504,430.12/3,605.96
  6. Step 6: Final answer
    x = 2,635.75

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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.