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Finding the Fourth Proportional to 16,313.78, 22,512.99 and 9,241.56

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Solution

The fourth proportional to 16,313.78, 22,512.99 and 9,241.56 is: 12,753.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,313.78 : 22,512.99 = 9,241.56 : x
  2. Step 2: Convert to fraction form
    16,313.78/22,512.99 = 9,241.56/x
  3. Step 3: Cross multiply
    16,313.78x = 22,512.99 × 9,241.56
  4. Step 4: Simplify right side
    16,313.78x = 208,055,147.86
  5. Step 5: Solve for x
    x = 208,055,147.86/16,313.78
  6. Step 6: Final answer
    x = 12,753.34

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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.