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Finding the Fourth Proportional to 10,791.16, 16,188.24 and 4,867.22

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Solution

The fourth proportional to 10,791.16, 16,188.24 and 4,867.22 is: 7,301.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.16 : 16,188.24 = 4,867.22 : x
  2. Step 2: Convert to fraction form
    10,791.16/16,188.24 = 4,867.22/x
  3. Step 3: Cross multiply
    10,791.16x = 16,188.24 × 4,867.22
  4. Step 4: Simplify right side
    10,791.16x = 78,791,725.49
  5. Step 5: Solve for x
    x = 78,791,725.49/10,791.16
  6. Step 6: Final answer
    x = 7,301.51

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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.