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Finding the Fourth Proportional to 18,602.36, 27,906.54 and 6,118.76

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Solution

The fourth proportional to 18,602.36, 27,906.54 and 6,118.76 is: 9,179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.36 : 27,906.54 = 6,118.76 : x
  2. Step 2: Convert to fraction form
    18,602.36/27,906.54 = 6,118.76/x
  3. Step 3: Cross multiply
    18,602.36x = 27,906.54 × 6,118.76
  4. Step 4: Simplify right side
    18,602.36x = 170,753,420.69
  5. Step 5: Solve for x
    x = 170,753,420.69/18,602.36
  6. Step 6: Final answer
    x = 9,179.13

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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.