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Finding the Fourth Proportional to 50,961.60, 76,296.60 and 39,200.40

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Solution

The fourth proportional to 50,961.60, 76,296.60 and 39,200.40 is: 58,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,961.60 : 76,296.60 = 39,200.40 : x
  2. Step 2: Convert to fraction form
    50,961.60/76,296.60 = 39,200.40/x
  3. Step 3: Cross multiply
    50,961.60x = 76,296.60 × 39,200.40
  4. Step 4: Simplify right side
    50,961.60x = 2,990,857,238.64
  5. Step 5: Solve for x
    x = 2,990,857,238.64/50,961.60
  6. Step 6: Final answer
    x = 58,688.45

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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.