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Finding the Fourth Proportional to 18,647.96, 27,962.15 and 5,498.55

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Solution

The fourth proportional to 18,647.96, 27,962.15 and 5,498.55 is: 8,244.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.96 : 27,962.15 = 5,498.55 : x
  2. Step 2: Convert to fraction form
    18,647.96/27,962.15 = 5,498.55/x
  3. Step 3: Cross multiply
    18,647.96x = 27,962.15 × 5,498.55
  4. Step 4: Simplify right side
    18,647.96x = 153,751,252.39
  5. Step 5: Solve for x
    x = 153,751,252.39/18,647.96
  6. Step 6: Final answer
    x = 8,244.94

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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.