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Finding the Fourth Proportional to 17,122.10, 25,683.15 and 7,906.10

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Solution

The fourth proportional to 17,122.10, 25,683.15 and 7,906.10 is: 11,859.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,122.10 : 25,683.15 = 7,906.10 : x
  2. Step 2: Convert to fraction form
    17,122.10/25,683.15 = 7,906.10/x
  3. Step 3: Cross multiply
    17,122.10x = 25,683.15 × 7,906.10
  4. Step 4: Simplify right side
    17,122.10x = 203,053,552.22
  5. Step 5: Solve for x
    x = 203,053,552.22/17,122.10
  6. Step 6: Final answer
    x = 11,859.15

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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.