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Finding the Fourth Proportional to 17,605.53, 26,348.76 and 17,131.68

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Solution

The fourth proportional to 17,605.53, 26,348.76 and 17,131.68 is: 25,639.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.53 : 26,348.76 = 17,131.68 : x
  2. Step 2: Convert to fraction form
    17,605.53/26,348.76 = 17,131.68/x
  3. Step 3: Cross multiply
    17,605.53x = 26,348.76 × 17,131.68
  4. Step 4: Simplify right side
    17,605.53x = 451,398,524.72
  5. Step 5: Solve for x
    x = 451,398,524.72/17,605.53
  6. Step 6: Final answer
    x = 25,639.59

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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.