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Finding the Fourth Proportional to 12,167.44, 18,259.16 and 11,176.08

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Solution

The fourth proportional to 12,167.44, 18,259.16 and 11,176.08 is: 16,771.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.44 : 18,259.16 = 11,176.08 : x
  2. Step 2: Convert to fraction form
    12,167.44/18,259.16 = 11,176.08/x
  3. Step 3: Cross multiply
    12,167.44x = 18,259.16 × 11,176.08
  4. Step 4: Simplify right side
    12,167.44x = 204,065,832.89
  5. Step 5: Solve for x
    x = 204,065,832.89/12,167.44
  6. Step 6: Final answer
    x = 16,771.47

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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.