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Finding the Fourth Proportional to 3,504.57, 5,256.81 and 1,039.38

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Solution

The fourth proportional to 3,504.57, 5,256.81 and 1,039.38 is: 1,559.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.57 : 5,256.81 = 1,039.38 : x
  2. Step 2: Convert to fraction form
    3,504.57/5,256.81 = 1,039.38/x
  3. Step 3: Cross multiply
    3,504.57x = 5,256.81 × 1,039.38
  4. Step 4: Simplify right side
    3,504.57x = 5,463,823.18
  5. Step 5: Solve for x
    x = 5,463,823.18/3,504.57
  6. Step 6: Final answer
    x = 1,559.06

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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.