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Finding the Fourth Proportional to 18,371.96, 27,536.06 and 12,795.11

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Solution

The fourth proportional to 18,371.96, 27,536.06 and 12,795.11 is: 19,177.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.96 : 27,536.06 = 12,795.11 : x
  2. Step 2: Convert to fraction form
    18,371.96/27,536.06 = 12,795.11/x
  3. Step 3: Cross multiply
    18,371.96x = 27,536.06 × 12,795.11
  4. Step 4: Simplify right side
    18,371.96x = 352,326,810.97
  5. Step 5: Solve for x
    x = 352,326,810.97/18,371.96
  6. Step 6: Final answer
    x = 19,177.43

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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.