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Finding the Fourth Proportional to 18,476.49, 27,717.48 and 6,788.80

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Solution

The fourth proportional to 18,476.49, 27,717.48 and 6,788.80 is: 10,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,476.49 : 27,717.48 = 6,788.80 : x
  2. Step 2: Convert to fraction form
    18,476.49/27,717.48 = 6,788.80/x
  3. Step 3: Cross multiply
    18,476.49x = 27,717.48 × 6,788.80
  4. Step 4: Simplify right side
    18,476.49x = 188,168,358.93
  5. Step 5: Solve for x
    x = 188,168,358.93/18,476.49
  6. Step 6: Final answer
    x = 10,184.20

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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.