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Finding the Fourth Proportional to 50,910.56, 70,254.14 and 28,249.28

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Solution

The fourth proportional to 50,910.56, 70,254.14 and 28,249.28 is: 38,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,910.56 : 70,254.14 = 28,249.28 : x
  2. Step 2: Convert to fraction form
    50,910.56/70,254.14 = 28,249.28/x
  3. Step 3: Cross multiply
    50,910.56x = 70,254.14 × 28,249.28
  4. Step 4: Simplify right side
    50,910.56x = 1,984,628,379.50
  5. Step 5: Solve for x
    x = 1,984,628,379.50/50,910.56
  6. Step 6: Final answer
    x = 38,982.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.