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Finding the Fourth Proportional to 17,242.21, 23,792.79 and 9,687.97

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Solution

The fourth proportional to 17,242.21, 23,792.79 and 9,687.97 is: 13,368.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,242.21 : 23,792.79 = 9,687.97 : x
  2. Step 2: Convert to fraction form
    17,242.21/23,792.79 = 9,687.97/x
  3. Step 3: Cross multiply
    17,242.21x = 23,792.79 × 9,687.97
  4. Step 4: Simplify right side
    17,242.21x = 230,503,835.74
  5. Step 5: Solve for x
    x = 230,503,835.74/17,242.21
  6. Step 6: Final answer
    x = 13,368.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.