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Finding the Fourth Proportional to 3,554.72, 5,321.10 and 3,029.84

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Solution

The fourth proportional to 3,554.72, 5,321.10 and 3,029.84 is: 4,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554.72 : 5,321.10 = 3,029.84 : x
  2. Step 2: Convert to fraction form
    3,554.72/5,321.10 = 3,029.84/x
  3. Step 3: Cross multiply
    3,554.72x = 5,321.10 × 3,029.84
  4. Step 4: Simplify right side
    3,554.72x = 16,122,081.62
  5. Step 5: Solve for x
    x = 16,122,081.62/3,554.72
  6. Step 6: Final answer
    x = 4,535.40

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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.