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Finding the Fourth Proportional to 18,606.96, 27,908.28 and 6,918.84

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Solution

The fourth proportional to 18,606.96, 27,908.28 and 6,918.84 is: 10,377.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.96 : 27,908.28 = 6,918.84 : x
  2. Step 2: Convert to fraction form
    18,606.96/27,908.28 = 6,918.84/x
  3. Step 3: Cross multiply
    18,606.96x = 27,908.28 × 6,918.84
  4. Step 4: Simplify right side
    18,606.96x = 193,092,924.00
  5. Step 5: Solve for x
    x = 193,092,924.00/18,606.96
  6. Step 6: Final answer
    x = 10,377.46

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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.