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Finding the Fourth Proportional to 10,992.52, 15,168.90 and 6,213.25

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Solution

The fourth proportional to 10,992.52, 15,168.90 and 6,213.25 is: 8,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.52 : 15,168.90 = 6,213.25 : x
  2. Step 2: Convert to fraction form
    10,992.52/15,168.90 = 6,213.25/x
  3. Step 3: Cross multiply
    10,992.52x = 15,168.90 × 6,213.25
  4. Step 4: Simplify right side
    10,992.52x = 94,248,167.93
  5. Step 5: Solve for x
    x = 94,248,167.93/10,992.52
  6. Step 6: Final answer
    x = 8,573.85

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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.