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Finding the Fourth Proportional to 8,991.49, 13,489.17 and 3,444.83

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Solution

The fourth proportional to 8,991.49, 13,489.17 and 3,444.83 is: 5,167.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.49 : 13,489.17 = 3,444.83 : x
  2. Step 2: Convert to fraction form
    8,991.49/13,489.17 = 3,444.83/x
  3. Step 3: Cross multiply
    8,991.49x = 13,489.17 × 3,444.83
  4. Step 4: Simplify right side
    8,991.49x = 46,467,897.49
  5. Step 5: Solve for x
    x = 46,467,897.49/8,991.49
  6. Step 6: Final answer
    x = 5,167.99

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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.