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Finding the Fourth Proportional to 12,049.88, 16,620.26 and 7,334.47

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Solution

The fourth proportional to 12,049.88, 16,620.26 and 7,334.47 is: 10,116.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,049.88 : 16,620.26 = 7,334.47 : x
  2. Step 2: Convert to fraction form
    12,049.88/16,620.26 = 7,334.47/x
  3. Step 3: Cross multiply
    12,049.88x = 16,620.26 × 7,334.47
  4. Step 4: Simplify right side
    12,049.88x = 121,900,720.14
  5. Step 5: Solve for x
    x = 121,900,720.14/12,049.88
  6. Step 6: Final answer
    x = 10,116.34

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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.