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Finding the Fourth Proportional to 4,998.12, 6,890.96 and 4,098.56

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Solution

The fourth proportional to 4,998.12, 6,890.96 and 4,098.56 is: 5,650.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.12 : 6,890.96 = 4,098.56 : x
  2. Step 2: Convert to fraction form
    4,998.12/6,890.96 = 4,098.56/x
  3. Step 3: Cross multiply
    4,998.12x = 6,890.96 × 4,098.56
  4. Step 4: Simplify right side
    4,998.12x = 28,243,013.02
  5. Step 5: Solve for x
    x = 28,243,013.02/4,998.12
  6. Step 6: Final answer
    x = 5,650.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.