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Finding the Fourth Proportional to 13,998.56, 20,997.88 and 9,602.69

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Solution

The fourth proportional to 13,998.56, 20,997.88 and 9,602.69 is: 14,404.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.56 : 20,997.88 = 9,602.69 : x
  2. Step 2: Convert to fraction form
    13,998.56/20,997.88 = 9,602.69/x
  3. Step 3: Cross multiply
    13,998.56x = 20,997.88 × 9,602.69
  4. Step 4: Simplify right side
    13,998.56x = 201,636,003.30
  5. Step 5: Solve for x
    x = 201,636,003.30/13,998.56
  6. Step 6: Final answer
    x = 14,404.06

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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.