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Finding the Fourth Proportional to 17,079.66, 25,622.87 and 7,218.92

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Solution

The fourth proportional to 17,079.66, 25,622.87 and 7,218.92 is: 10,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,079.66 : 25,622.87 = 7,218.92 : x
  2. Step 2: Convert to fraction form
    17,079.66/25,622.87 = 7,218.92/x
  3. Step 3: Cross multiply
    17,079.66x = 25,622.87 × 7,218.92
  4. Step 4: Simplify right side
    17,079.66x = 184,969,476.66
  5. Step 5: Solve for x
    x = 184,969,476.66/17,079.66
  6. Step 6: Final answer
    x = 10,829.81

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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.