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Finding the Fourth Proportional to 4,745.79, 7,104.09 and 3,098.79

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Solution

The fourth proportional to 4,745.79, 7,104.09 and 3,098.79 is: 4,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.79 : 7,104.09 = 3,098.79 : x
  2. Step 2: Convert to fraction form
    4,745.79/7,104.09 = 3,098.79/x
  3. Step 3: Cross multiply
    4,745.79x = 7,104.09 × 3,098.79
  4. Step 4: Simplify right side
    4,745.79x = 22,014,083.05
  5. Step 5: Solve for x
    x = 22,014,083.05/4,745.79
  6. Step 6: Final answer
    x = 4,638.66

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1.5x scale

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.