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Finding the Fourth Proportional to 15,489.86, 23,239.24 and 5,626.48

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Solution

The fourth proportional to 15,489.86, 23,239.24 and 5,626.48 is: 8,441.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,489.86 : 23,239.24 = 5,626.48 : x
  2. Step 2: Convert to fraction form
    15,489.86/23,239.24 = 5,626.48/x
  3. Step 3: Cross multiply
    15,489.86x = 23,239.24 × 5,626.48
  4. Step 4: Simplify right side
    15,489.86x = 130,755,119.08
  5. Step 5: Solve for x
    x = 130,755,119.08/15,489.86
  6. Step 6: Final answer
    x = 8,441.34

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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.