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Finding the Fourth Proportional to 18,622.08, 25,705.08 and 12,336.48

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Solution

The fourth proportional to 18,622.08, 25,705.08 and 12,336.48 is: 17,028.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.08 : 25,705.08 = 12,336.48 : x
  2. Step 2: Convert to fraction form
    18,622.08/25,705.08 = 12,336.48/x
  3. Step 3: Cross multiply
    18,622.08x = 25,705.08 × 12,336.48
  4. Step 4: Simplify right side
    18,622.08x = 317,110,205.32
  5. Step 5: Solve for x
    x = 317,110,205.32/18,622.08
  6. Step 6: Final answer
    x = 17,028.72

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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.