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Finding the Fourth Proportional to 18,018.27, 27,023.65 and 4,867.56

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Solution

The fourth proportional to 18,018.27, 27,023.65 and 4,867.56 is: 7,300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.27 : 27,023.65 = 4,867.56 : x
  2. Step 2: Convert to fraction form
    18,018.27/27,023.65 = 4,867.56/x
  3. Step 3: Cross multiply
    18,018.27x = 27,023.65 × 4,867.56
  4. Step 4: Simplify right side
    18,018.27x = 131,539,225.63
  5. Step 5: Solve for x
    x = 131,539,225.63/18,018.27
  6. Step 6: Final answer
    x = 7,300.32

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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.