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Finding the Fourth Proportional to 50,992.50, 70,380.89 and 28,339.27

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Solution

The fourth proportional to 50,992.50, 70,380.89 and 28,339.27 is: 39,114.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,992.50 : 70,380.89 = 28,339.27 : x
  2. Step 2: Convert to fraction form
    50,992.50/70,380.89 = 28,339.27/x
  3. Step 3: Cross multiply
    50,992.50x = 70,380.89 × 28,339.27
  4. Step 4: Simplify right side
    50,992.50x = 1,994,543,044.55
  5. Step 5: Solve for x
    x = 1,994,543,044.55/50,992.50
  6. Step 6: Final answer
    x = 39,114.44

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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.