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Finding the Fourth Proportional to 9,997.69, 14,998.01 and 3,331.93

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Solution

The fourth proportional to 9,997.69, 14,998.01 and 3,331.93 is: 4,998.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.69 : 14,998.01 = 3,331.93 : x
  2. Step 2: Convert to fraction form
    9,997.69/14,998.01 = 3,331.93/x
  3. Step 3: Cross multiply
    9,997.69x = 14,998.01 × 3,331.93
  4. Step 4: Simplify right side
    9,997.69x = 49,972,319.46
  5. Step 5: Solve for x
    x = 49,972,319.46/9,997.69
  6. Step 6: Final answer
    x = 4,998.39

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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.