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Finding the Fourth Proportional to 50,764.88, 70,055.54 and 28,408.88

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Solution

The fourth proportional to 50,764.88, 70,055.54 and 28,408.88 is: 39,204.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,764.88 : 70,055.54 = 28,408.88 : x
  2. Step 2: Convert to fraction form
    50,764.88/70,055.54 = 28,408.88/x
  3. Step 3: Cross multiply
    50,764.88x = 70,055.54 × 28,408.88
  4. Step 4: Simplify right side
    50,764.88x = 1,990,198,936.87
  5. Step 5: Solve for x
    x = 1,990,198,936.87/50,764.88
  6. Step 6: Final answer
    x = 39,204.25

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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.