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Finding the Fourth Proportional to 17,605.10, 26,404.92 and 5,122.58

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Solution

The fourth proportional to 17,605.10, 26,404.92 and 5,122.58 is: 7,683.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.10 : 26,404.92 = 5,122.58 : x
  2. Step 2: Convert to fraction form
    17,605.10/26,404.92 = 5,122.58/x
  3. Step 3: Cross multiply
    17,605.10x = 26,404.92 × 5,122.58
  4. Step 4: Simplify right side
    17,605.10x = 135,261,183.07
  5. Step 5: Solve for x
    x = 135,261,183.07/17,605.10
  6. Step 6: Final answer
    x = 7,683.07

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1.5x scale

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.