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Finding the Fourth Proportional to 9,998.55, 14,997.96 and 3,424.59

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Solution

The fourth proportional to 9,998.55, 14,997.96 and 3,424.59 is: 5,136.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.55 : 14,997.96 = 3,424.59 : x
  2. Step 2: Convert to fraction form
    9,998.55/14,997.96 = 3,424.59/x
  3. Step 3: Cross multiply
    9,998.55x = 14,997.96 × 3,424.59
  4. Step 4: Simplify right side
    9,998.55x = 51,361,863.84
  5. Step 5: Solve for x
    x = 51,361,863.84/9,998.55
  6. Step 6: Final answer
    x = 5,136.93

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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.