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Finding the Fourth Proportional to 50,871.60, 76,306.68 and 15,811.20

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Solution

The fourth proportional to 50,871.60, 76,306.68 and 15,811.20 is: 23,716.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,871.60 : 76,306.68 = 15,811.20 : x
  2. Step 2: Convert to fraction form
    50,871.60/76,306.68 = 15,811.20/x
  3. Step 3: Cross multiply
    50,871.60x = 76,306.68 × 15,811.20
  4. Step 4: Simplify right side
    50,871.60x = 1,206,500,178.82
  5. Step 5: Solve for x
    x = 1,206,500,178.82/50,871.60
  6. Step 6: Final answer
    x = 23,716.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.