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Finding the Fourth Proportional to 11,641.86, 17,462.97 and 6,480.54

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Solution

The fourth proportional to 11,641.86, 17,462.97 and 6,480.54 is: 9,720.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,641.86 : 17,462.97 = 6,480.54 : x
  2. Step 2: Convert to fraction form
    11,641.86/17,462.97 = 6,480.54/x
  3. Step 3: Cross multiply
    11,641.86x = 17,462.97 × 6,480.54
  4. Step 4: Simplify right side
    11,641.86x = 113,169,475.60
  5. Step 5: Solve for x
    x = 113,169,475.60/11,641.86
  6. Step 6: Final answer
    x = 9,720.91

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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.