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Finding the Fourth Proportional to 17,617.96, 26,426.94 and 7,222.42

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Solution

The fourth proportional to 17,617.96, 26,426.94 and 7,222.42 is: 10,833.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,617.96 : 26,426.94 = 7,222.42 : x
  2. Step 2: Convert to fraction form
    17,617.96/26,426.94 = 7,222.42/x
  3. Step 3: Cross multiply
    17,617.96x = 26,426.94 × 7,222.42
  4. Step 4: Simplify right side
    17,617.96x = 190,866,459.99
  5. Step 5: Solve for x
    x = 190,866,459.99/17,617.96
  6. Step 6: Final answer
    x = 10,833.63

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Double scale
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Similar ratio
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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.