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Finding the Fourth Proportional to 50,708.70, 76,063.05 and 13,772.70

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Solution

The fourth proportional to 50,708.70, 76,063.05 and 13,772.70 is: 20,659.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,708.70 : 76,063.05 = 13,772.70 : x
  2. Step 2: Convert to fraction form
    50,708.70/76,063.05 = 13,772.70/x
  3. Step 3: Cross multiply
    50,708.70x = 76,063.05 × 13,772.70
  4. Step 4: Simplify right side
    50,708.70x = 1,047,593,568.74
  5. Step 5: Solve for x
    x = 1,047,593,568.74/50,708.70
  6. Step 6: Final answer
    x = 20,659.05

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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.