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Finding the Fourth Proportional to 18,261.12, 27,391.44 and 4,410

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Solution

The fourth proportional to 18,261.12, 27,391.44 and 4,410 is: 6,614.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.12 : 27,391.44 = 4,410 : x
  2. Step 2: Convert to fraction form
    18,261.12/27,391.44 = 4,410/x
  3. Step 3: Cross multiply
    18,261.12x = 27,391.44 × 4,410
  4. Step 4: Simplify right side
    18,261.12x = 120,796,250.40
  5. Step 5: Solve for x
    x = 120,796,250.40/18,261.12
  6. Step 6: Final answer
    x = 6,614.94

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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.