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Finding the Fourth Proportional to 12,170.01, 18,241.65 and 4,773.09

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Solution

The fourth proportional to 12,170.01, 18,241.65 and 4,773.09 is: 7,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.01 : 18,241.65 = 4,773.09 : x
  2. Step 2: Convert to fraction form
    12,170.01/18,241.65 = 4,773.09/x
  3. Step 3: Cross multiply
    12,170.01x = 18,241.65 × 4,773.09
  4. Step 4: Simplify right side
    12,170.01x = 87,069,037.20
  5. Step 5: Solve for x
    x = 87,069,037.20/12,170.01
  6. Step 6: Final answer
    x = 7,154.39

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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.