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Finding the Fourth Proportional to 50,163.74, 69,231.74 and 28,656.89

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Solution

The fourth proportional to 50,163.74, 69,231.74 and 28,656.89 is: 39,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,163.74 : 69,231.74 = 28,656.89 : x
  2. Step 2: Convert to fraction form
    50,163.74/69,231.74 = 28,656.89/x
  3. Step 3: Cross multiply
    50,163.74x = 69,231.74 × 28,656.89
  4. Step 4: Simplify right side
    50,163.74x = 1,983,966,387.48
  5. Step 5: Solve for x
    x = 1,983,966,387.48/50,163.74
  6. Step 6: Final answer
    x = 39,549.81

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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.