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Finding the Fourth Proportional to 11,174.88, 16,740.72 and 8,708.88

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Solution

The fourth proportional to 11,174.88, 16,740.72 and 8,708.88 is: 13,046.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.88 : 16,740.72 = 8,708.88 : x
  2. Step 2: Convert to fraction form
    11,174.88/16,740.72 = 8,708.88/x
  3. Step 3: Cross multiply
    11,174.88x = 16,740.72 × 8,708.88
  4. Step 4: Simplify right side
    11,174.88x = 145,792,921.59
  5. Step 5: Solve for x
    x = 145,792,921.59/11,174.88
  6. Step 6: Final answer
    x = 13,046.49

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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.