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Finding the Fourth Proportional to 11,766.81, 16,239.07 and 7,291.44

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Solution

The fourth proportional to 11,766.81, 16,239.07 and 7,291.44 is: 10,062.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,766.81 : 16,239.07 = 7,291.44 : x
  2. Step 2: Convert to fraction form
    11,766.81/16,239.07 = 7,291.44/x
  3. Step 3: Cross multiply
    11,766.81x = 16,239.07 × 7,291.44
  4. Step 4: Simplify right side
    11,766.81x = 118,406,213.68
  5. Step 5: Solve for x
    x = 118,406,213.68/11,766.81
  6. Step 6: Final answer
    x = 10,062.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.