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Finding the Fourth Proportional to 18,165.96, 27,248.91 and 5,018.31

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Solution

The fourth proportional to 18,165.96, 27,248.91 and 5,018.31 is: 7,527.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165.96 : 27,248.91 = 5,018.31 : x
  2. Step 2: Convert to fraction form
    18,165.96/27,248.91 = 5,018.31/x
  3. Step 3: Cross multiply
    18,165.96x = 27,248.91 × 5,018.31
  4. Step 4: Simplify right side
    18,165.96x = 136,743,477.54
  5. Step 5: Solve for x
    x = 136,743,477.54/18,165.96
  6. Step 6: Final answer
    x = 7,527.46

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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.