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Finding the Fourth Proportional to 18,530.24, 27,795.44 and 4,679.24

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Solution

The fourth proportional to 18,530.24, 27,795.44 and 4,679.24 is: 7,018.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530.24 : 27,795.44 = 4,679.24 : x
  2. Step 2: Convert to fraction form
    18,530.24/27,795.44 = 4,679.24/x
  3. Step 3: Cross multiply
    18,530.24x = 27,795.44 × 4,679.24
  4. Step 4: Simplify right side
    18,530.24x = 130,061,534.67
  5. Step 5: Solve for x
    x = 130,061,534.67/18,530.24
  6. Step 6: Final answer
    x = 7,018.88

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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.