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Finding the Fourth Proportional to 17,616.96, 26,425.44 and 7,221.42

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Solution

The fourth proportional to 17,616.96, 26,425.44 and 7,221.42 is: 10,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,616.96 : 26,425.44 = 7,221.42 : x
  2. Step 2: Convert to fraction form
    17,616.96/26,425.44 = 7,221.42/x
  3. Step 3: Cross multiply
    17,616.96x = 26,425.44 × 7,221.42
  4. Step 4: Simplify right side
    17,616.96x = 190,829,200.92
  5. Step 5: Solve for x
    x = 190,829,200.92/17,616.96
  6. Step 6: Final answer
    x = 10,832.13

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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.