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Finding the Fourth Proportional to 17,811.22, 26,706.96 and 7,288.63

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Solution

The fourth proportional to 17,811.22, 26,706.96 and 7,288.63 is: 10,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,811.22 : 26,706.96 = 7,288.63 : x
  2. Step 2: Convert to fraction form
    17,811.22/26,706.96 = 7,288.63/x
  3. Step 3: Cross multiply
    17,811.22x = 26,706.96 × 7,288.63
  4. Step 4: Simplify right side
    17,811.22x = 194,657,149.86
  5. Step 5: Solve for x
    x = 194,657,149.86/17,811.22
  6. Step 6: Final answer
    x = 10,928.91

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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.