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Finding the Fourth Proportional to 18,320.72, 27,460.68 and 16,844.48

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Solution

The fourth proportional to 18,320.72, 27,460.68 and 16,844.48 is: 25,247.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.72 : 27,460.68 = 16,844.48 : x
  2. Step 2: Convert to fraction form
    18,320.72/27,460.68 = 16,844.48/x
  3. Step 3: Cross multiply
    18,320.72x = 27,460.68 × 16,844.48
  4. Step 4: Simplify right side
    18,320.72x = 462,560,875.05
  5. Step 5: Solve for x
    x = 462,560,875.05/18,320.72
  6. Step 6: Final answer
    x = 25,247.96

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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.