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Finding the Fourth Proportional to 57,874.23, 86,817.56 and 18,422.11

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Solution

The fourth proportional to 57,874.23, 86,817.56 and 18,422.11 is: 27,635.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,874.23 : 86,817.56 = 18,422.11 : x
  2. Step 2: Convert to fraction form
    57,874.23/86,817.56 = 18,422.11/x
  3. Step 3: Cross multiply
    57,874.23x = 86,817.56 × 18,422.11
  4. Step 4: Simplify right side
    57,874.23x = 1,599,362,640.25
  5. Step 5: Solve for x
    x = 1,599,362,640.25/57,874.23
  6. Step 6: Final answer
    x = 27,635.14

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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.