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Finding the Fourth Proportional to 17,898.82, 26,851.28 and 7,374.53

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Solution

The fourth proportional to 17,898.82, 26,851.28 and 7,374.53 is: 11,063.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,898.82 : 26,851.28 = 7,374.53 : x
  2. Step 2: Convert to fraction form
    17,898.82/26,851.28 = 7,374.53/x
  3. Step 3: Cross multiply
    17,898.82x = 26,851.28 × 7,374.53
  4. Step 4: Simplify right side
    17,898.82x = 198,015,600.15
  5. Step 5: Solve for x
    x = 198,015,600.15/17,898.82
  6. Step 6: Final answer
    x = 11,063.05

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Why These Related Problems?

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