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Finding the Fourth Proportional to 3,504.66, 5,257.29 and 1,005.90

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Solution

The fourth proportional to 3,504.66, 5,257.29 and 1,005.90 is: 1,508.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.66 : 5,257.29 = 1,005.90 : x
  2. Step 2: Convert to fraction form
    3,504.66/5,257.29 = 1,005.90/x
  3. Step 3: Cross multiply
    3,504.66x = 5,257.29 × 1,005.90
  4. Step 4: Simplify right side
    3,504.66x = 5,288,308.01
  5. Step 5: Solve for x
    x = 5,288,308.01/3,504.66
  6. Step 6: Final answer
    x = 1,508.94

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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.