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Finding the Fourth Proportional to 50,186.79, 69,250.14 and 28,672.79

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Solution

The fourth proportional to 50,186.79, 69,250.14 and 28,672.79 is: 39,564.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,186.79 : 69,250.14 = 28,672.79 : x
  2. Step 2: Convert to fraction form
    50,186.79/69,250.14 = 28,672.79/x
  3. Step 3: Cross multiply
    50,186.79x = 69,250.14 × 28,672.79
  4. Step 4: Simplify right side
    50,186.79x = 1,985,594,375.44
  5. Step 5: Solve for x
    x = 1,985,594,375.44/50,186.79
  6. Step 6: Final answer
    x = 39,564.08

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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.