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Finding the Fourth Proportional to 18,089.96, 27,132.78 and 4,943.48

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Solution

The fourth proportional to 18,089.96, 27,132.78 and 4,943.48 is: 7,414.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,089.96 : 27,132.78 = 4,943.48 : x
  2. Step 2: Convert to fraction form
    18,089.96/27,132.78 = 4,943.48/x
  3. Step 3: Cross multiply
    18,089.96x = 27,132.78 × 4,943.48
  4. Step 4: Simplify right side
    18,089.96x = 134,130,355.27
  5. Step 5: Solve for x
    x = 134,130,355.27/18,089.96
  6. Step 6: Final answer
    x = 7,414.63

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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.