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Finding the Fourth Proportional to 15,608.20, 23,363.70 and 15,122.20

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Solution

The fourth proportional to 15,608.20, 23,363.70 and 15,122.20 is: 22,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608.20 : 23,363.70 = 15,122.20 : x
  2. Step 2: Convert to fraction form
    15,608.20/23,363.70 = 15,122.20/x
  3. Step 3: Cross multiply
    15,608.20x = 23,363.70 × 15,122.20
  4. Step 4: Simplify right side
    15,608.20x = 353,310,544.14
  5. Step 5: Solve for x
    x = 353,310,544.14/15,608.20
  6. Step 6: Final answer
    x = 22,636.21

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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.