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Finding the Fourth Proportional to 50,878.80, 76,234.68 and 48,934.80

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Solution

The fourth proportional to 50,878.80, 76,234.68 and 48,934.80 is: 73,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,878.80 : 76,234.68 = 48,934.80 : x
  2. Step 2: Convert to fraction form
    50,878.80/76,234.68 = 48,934.80/x
  3. Step 3: Cross multiply
    50,878.80x = 76,234.68 × 48,934.80
  4. Step 4: Simplify right side
    50,878.80x = 3,730,528,818.86
  5. Step 5: Solve for x
    x = 3,730,528,818.86/50,878.80
  6. Step 6: Final answer
    x = 73,321.87

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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.