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Finding the Fourth Proportional to 18,472.62, 27,717.45 and 11,460.87

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Solution

The fourth proportional to 18,472.62, 27,717.45 and 11,460.87 is: 17,196.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472.62 : 27,717.45 = 11,460.87 : x
  2. Step 2: Convert to fraction form
    18,472.62/27,717.45 = 11,460.87/x
  3. Step 3: Cross multiply
    18,472.62x = 27,717.45 × 11,460.87
  4. Step 4: Simplify right side
    18,472.62x = 317,666,091.18
  5. Step 5: Solve for x
    x = 317,666,091.18/18,472.62
  6. Step 6: Final answer
    x = 17,196.59

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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.