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Finding the Fourth Proportional to 11,305.42, 16,960.98 and 6,629.34

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Solution

The fourth proportional to 11,305.42, 16,960.98 and 6,629.34 is: 9,945.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,305.42 : 16,960.98 = 6,629.34 : x
  2. Step 2: Convert to fraction form
    11,305.42/16,960.98 = 6,629.34/x
  3. Step 3: Cross multiply
    11,305.42x = 16,960.98 × 6,629.34
  4. Step 4: Simplify right side
    11,305.42x = 112,440,182.29
  5. Step 5: Solve for x
    x = 112,440,182.29/11,305.42
  6. Step 6: Final answer
    x = 9,945.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.