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Finding the Fourth Proportional to 18,257.63, 27,386.44 and 5,945.63

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Solution

The fourth proportional to 18,257.63, 27,386.44 and 5,945.63 is: 8,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.63 : 27,386.44 = 5,945.63 : x
  2. Step 2: Convert to fraction form
    18,257.63/27,386.44 = 5,945.63/x
  3. Step 3: Cross multiply
    18,257.63x = 27,386.44 × 5,945.63
  4. Step 4: Simplify right side
    18,257.63x = 162,829,487.46
  5. Step 5: Solve for x
    x = 162,829,487.46/18,257.63
  6. Step 6: Final answer
    x = 8,918.44

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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.