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Finding the Fourth Proportional to 17,652.63, 26,478.60 and 7,122.44

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Solution

The fourth proportional to 17,652.63, 26,478.60 and 7,122.44 is: 10,683.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,652.63 : 26,478.60 = 7,122.44 : x
  2. Step 2: Convert to fraction form
    17,652.63/26,478.60 = 7,122.44/x
  3. Step 3: Cross multiply
    17,652.63x = 26,478.60 × 7,122.44
  4. Step 4: Simplify right side
    17,652.63x = 188,592,107.39
  5. Step 5: Solve for x
    x = 188,592,107.39/17,652.63
  6. Step 6: Final answer
    x = 10,683.51

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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.