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Finding the Fourth Proportional to 11,791.53, 16,272.03 and 6,486.23

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Solution

The fourth proportional to 11,791.53, 16,272.03 and 6,486.23 is: 8,950.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.53 : 16,272.03 = 6,486.23 : x
  2. Step 2: Convert to fraction form
    11,791.53/16,272.03 = 6,486.23/x
  3. Step 3: Cross multiply
    11,791.53x = 16,272.03 × 6,486.23
  4. Step 4: Simplify right side
    11,791.53x = 105,544,047.79
  5. Step 5: Solve for x
    x = 105,544,047.79/11,791.53
  6. Step 6: Final answer
    x = 8,950.84

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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.