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Finding the Fourth Proportional to 17,993.17, 26,989.72 and 4,845.56

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Solution

The fourth proportional to 17,993.17, 26,989.72 and 4,845.56 is: 7,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,993.17 : 26,989.72 = 4,845.56 : x
  2. Step 2: Convert to fraction form
    17,993.17/26,989.72 = 4,845.56/x
  3. Step 3: Cross multiply
    17,993.17x = 26,989.72 × 4,845.56
  4. Step 4: Simplify right side
    17,993.17x = 130,780,160.58
  5. Step 5: Solve for x
    x = 130,780,160.58/17,993.17
  6. Step 6: Final answer
    x = 7,268.32

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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.