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Finding the Fourth Proportional to 18,654.24, 27,972.59 and 7,552.49

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Solution

The fourth proportional to 18,654.24, 27,972.59 and 7,552.49 is: 11,325.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.24 : 27,972.59 = 7,552.49 : x
  2. Step 2: Convert to fraction form
    18,654.24/27,972.59 = 7,552.49/x
  3. Step 3: Cross multiply
    18,654.24x = 27,972.59 × 7,552.49
  4. Step 4: Simplify right side
    18,654.24x = 211,262,528.62
  5. Step 5: Solve for x
    x = 211,262,528.62/18,654.24
  6. Step 6: Final answer
    x = 11,325.17

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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.