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Finding the Fourth Proportional to 17,242.72, 25,839.36 and 9,831.88

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Solution

The fourth proportional to 17,242.72, 25,839.36 and 9,831.88 is: 14,733.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,242.72 : 25,839.36 = 9,831.88 : x
  2. Step 2: Convert to fraction form
    17,242.72/25,839.36 = 9,831.88/x
  3. Step 3: Cross multiply
    17,242.72x = 25,839.36 × 9,831.88
  4. Step 4: Simplify right side
    17,242.72x = 254,049,486.80
  5. Step 5: Solve for x
    x = 254,049,486.80/17,242.72
  6. Step 6: Final answer
    x = 14,733.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.