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Finding the Fourth Proportional to 18,498.42, 27,748.08 and 6,018.48

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Solution

The fourth proportional to 18,498.42, 27,748.08 and 6,018.48 is: 9,027.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.42 : 27,748.08 = 6,018.48 : x
  2. Step 2: Convert to fraction form
    18,498.42/27,748.08 = 6,018.48/x
  3. Step 3: Cross multiply
    18,498.42x = 27,748.08 × 6,018.48
  4. Step 4: Simplify right side
    18,498.42x = 167,001,264.52
  5. Step 5: Solve for x
    x = 167,001,264.52/18,498.42
  6. Step 6: Final answer
    x = 9,027.87

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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.