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Finding the Fourth Proportional to 50,674.52, 69,931.28 and 28,013.15

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Solution

The fourth proportional to 50,674.52, 69,931.28 and 28,013.15 is: 38,658.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,674.52 : 69,931.28 = 28,013.15 : x
  2. Step 2: Convert to fraction form
    50,674.52/69,931.28 = 28,013.15/x
  3. Step 3: Cross multiply
    50,674.52x = 69,931.28 × 28,013.15
  4. Step 4: Simplify right side
    50,674.52x = 1,958,995,436.33
  5. Step 5: Solve for x
    x = 1,958,995,436.33/50,674.52
  6. Step 6: Final answer
    x = 38,658.39

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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.