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Finding the Fourth Proportional to 18,541.62, 27,817.38 and 7,448.76

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Solution

The fourth proportional to 18,541.62, 27,817.38 and 7,448.76 is: 11,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,541.62 : 27,817.38 = 7,448.76 : x
  2. Step 2: Convert to fraction form
    18,541.62/27,817.38 = 7,448.76/x
  3. Step 3: Cross multiply
    18,541.62x = 27,817.38 × 7,448.76
  4. Step 4: Simplify right side
    18,541.62x = 207,204,987.45
  5. Step 5: Solve for x
    x = 207,204,987.45/18,541.62
  6. Step 6: Final answer
    x = 11,175.13

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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.