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Finding the Fourth Proportional to 11,843.55, 16,346.21 and 7,063.79

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Solution

The fourth proportional to 11,843.55, 16,346.21 and 7,063.79 is: 9,749.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843.55 : 16,346.21 = 7,063.79 : x
  2. Step 2: Convert to fraction form
    11,843.55/16,346.21 = 7,063.79/x
  3. Step 3: Cross multiply
    11,843.55x = 16,346.21 × 7,063.79
  4. Step 4: Simplify right side
    11,843.55x = 115,466,077.69
  5. Step 5: Solve for x
    x = 115,466,077.69/11,843.55
  6. Step 6: Final answer
    x = 9,749.28

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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.