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Finding the Fourth Proportional to 11,996.88, 16,563.42 and 7,749.84

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Solution

The fourth proportional to 11,996.88, 16,563.42 and 7,749.84 is: 10,699.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.88 : 16,563.42 = 7,749.84 : x
  2. Step 2: Convert to fraction form
    11,996.88/16,563.42 = 7,749.84/x
  3. Step 3: Cross multiply
    11,996.88x = 16,563.42 × 7,749.84
  4. Step 4: Simplify right side
    11,996.88x = 128,363,854.85
  5. Step 5: Solve for x
    x = 128,363,854.85/11,996.88
  6. Step 6: Final answer
    x = 10,699.77

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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.