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Finding the Fourth Proportional to 22,253.22, 30,716.28 and 12,828.06

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Solution

The fourth proportional to 22,253.22, 30,716.28 and 12,828.06 is: 17,706.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,253.22 : 30,716.28 = 12,828.06 : x
  2. Step 2: Convert to fraction form
    22,253.22/30,716.28 = 12,828.06/x
  3. Step 3: Cross multiply
    22,253.22x = 30,716.28 × 12,828.06
  4. Step 4: Simplify right side
    22,253.22x = 394,030,282.82
  5. Step 5: Solve for x
    x = 394,030,282.82/22,253.22
  6. Step 6: Final answer
    x = 17,706.66

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