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Finding the Fourth Proportional to 10,994.39, 16,489.06 and 6,553.31

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Solution

The fourth proportional to 10,994.39, 16,489.06 and 6,553.31 is: 9,828.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,994.39 : 16,489.06 = 6,553.31 : x
  2. Step 2: Convert to fraction form
    10,994.39/16,489.06 = 6,553.31/x
  3. Step 3: Cross multiply
    10,994.39x = 16,489.06 × 6,553.31
  4. Step 4: Simplify right side
    10,994.39x = 108,057,954.38
  5. Step 5: Solve for x
    x = 108,057,954.38/10,994.39
  6. Step 6: Final answer
    x = 9,828.46

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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.