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Finding the Fourth Proportional to 19,005.75, 26,228.75 and 10,622.25

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Solution

The fourth proportional to 19,005.75, 26,228.75 and 10,622.25 is: 14,659.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.75 : 26,228.75 = 10,622.25 : x
  2. Step 2: Convert to fraction form
    19,005.75/26,228.75 = 10,622.25/x
  3. Step 3: Cross multiply
    19,005.75x = 26,228.75 × 10,622.25
  4. Step 4: Simplify right side
    19,005.75x = 278,608,286.58
  5. Step 5: Solve for x
    x = 278,608,286.58/19,005.75
  6. Step 6: Final answer
    x = 14,659.16

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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.