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Finding the Fourth Proportional to 19,325.67, 26,654.91 and 12,959.48

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Solution

The fourth proportional to 19,325.67, 26,654.91 and 12,959.48 is: 17,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,325.67 : 26,654.91 = 12,959.48 : x
  2. Step 2: Convert to fraction form
    19,325.67/26,654.91 = 12,959.48/x
  3. Step 3: Cross multiply
    19,325.67x = 26,654.91 × 12,959.48
  4. Step 4: Simplify right side
    19,325.67x = 345,433,639.77
  5. Step 5: Solve for x
    x = 345,433,639.77/19,325.67
  6. Step 6: Final answer
    x = 17,874.34

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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.