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Finding the Fourth Proportional to 4,984.75, 7,472.40 and 3,231.10

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Solution

The fourth proportional to 4,984.75, 7,472.40 and 3,231.10 is: 4,843.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.75 : 7,472.40 = 3,231.10 : x
  2. Step 2: Convert to fraction form
    4,984.75/7,472.40 = 3,231.10/x
  3. Step 3: Cross multiply
    4,984.75x = 7,472.40 × 3,231.10
  4. Step 4: Simplify right side
    4,984.75x = 24,144,071.64
  5. Step 5: Solve for x
    x = 24,144,071.64/4,984.75
  6. Step 6: Final answer
    x = 4,843.59

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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.