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Finding the Fourth Proportional to 18,622.62, 27,915.21 and 9,248.22

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Solution

The fourth proportional to 18,622.62, 27,915.21 and 9,248.22 is: 13,863.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.62 : 27,915.21 = 9,248.22 : x
  2. Step 2: Convert to fraction form
    18,622.62/27,915.21 = 9,248.22/x
  3. Step 3: Cross multiply
    18,622.62x = 27,915.21 × 9,248.22
  4. Step 4: Simplify right side
    18,622.62x = 258,166,003.43
  5. Step 5: Solve for x
    x = 258,166,003.43/18,622.62
  6. Step 6: Final answer
    x = 13,863.03

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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.