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Finding the Fourth Proportional to 18,641.37, 27,962.28 and 5,493.99

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Solution

The fourth proportional to 18,641.37, 27,962.28 and 5,493.99 is: 8,241.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.37 : 27,962.28 = 5,493.99 : x
  2. Step 2: Convert to fraction form
    18,641.37/27,962.28 = 5,493.99/x
  3. Step 3: Cross multiply
    18,641.37x = 27,962.28 × 5,493.99
  4. Step 4: Simplify right side
    18,641.37x = 153,624,486.70
  5. Step 5: Solve for x
    x = 153,624,486.70/18,641.37
  6. Step 6: Final answer
    x = 8,241.05

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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.