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Finding the Fourth Proportional to 50,814.48, 70,138.80 and 32,908.80

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Solution

The fourth proportional to 50,814.48, 70,138.80 and 32,908.80 is: 45,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,814.48 : 70,138.80 = 32,908.80 : x
  2. Step 2: Convert to fraction form
    50,814.48/70,138.80 = 32,908.80/x
  3. Step 3: Cross multiply
    50,814.48x = 70,138.80 × 32,908.80
  4. Step 4: Simplify right side
    50,814.48x = 2,308,183,741.44
  5. Step 5: Solve for x
    x = 2,308,183,741.44/50,814.48
  6. Step 6: Final answer
    x = 45,423.74

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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.