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Finding the Fourth Proportional to 50,914.80, 70,262.82 and 28,255.32

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Solution

The fourth proportional to 50,914.80, 70,262.82 and 28,255.32 is: 38,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,914.80 : 70,262.82 = 28,255.32 : x
  2. Step 2: Convert to fraction form
    50,914.80/70,262.82 = 28,255.32/x
  3. Step 3: Cross multiply
    50,914.80x = 70,262.82 × 28,255.32
  4. Step 4: Simplify right side
    50,914.80x = 1,985,298,463.20
  5. Step 5: Solve for x
    x = 1,985,298,463.20/50,914.80
  6. Step 6: Final answer
    x = 38,992.56

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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.