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Finding the Fourth Proportional to 50,903.87, 70,251.19 and 28,247.15

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Solution

The fourth proportional to 50,903.87, 70,251.19 and 28,247.15 is: 38,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,903.87 : 70,251.19 = 28,247.15 : x
  2. Step 2: Convert to fraction form
    50,903.87/70,251.19 = 28,247.15/x
  3. Step 3: Cross multiply
    50,903.87x = 70,251.19 × 28,247.15
  4. Step 4: Simplify right side
    50,903.87x = 1,984,395,550.35
  5. Step 5: Solve for x
    x = 1,984,395,550.35/50,903.87
  6. Step 6: Final answer
    x = 38,983.20

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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.