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Finding the Fourth Proportional to 50,672.52, 69,928.52 and 28,011.15

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Solution

The fourth proportional to 50,672.52, 69,928.52 and 28,011.15 is: 38,655.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,672.52 : 69,928.52 = 28,011.15 : x
  2. Step 2: Convert to fraction form
    50,672.52/69,928.52 = 28,011.15/x
  3. Step 3: Cross multiply
    50,672.52x = 69,928.52 × 28,011.15
  4. Step 4: Simplify right side
    50,672.52x = 1,958,778,122.94
  5. Step 5: Solve for x
    x = 1,958,778,122.94/50,672.52
  6. Step 6: Final answer
    x = 38,655.63

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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.