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Finding the Fourth Proportional to 53,912.60, 80,883.30 and 48,109.40

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Solution

The fourth proportional to 53,912.60, 80,883.30 and 48,109.40 is: 72,176.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,912.60 : 80,883.30 = 48,109.40 : x
  2. Step 2: Convert to fraction form
    53,912.60/80,883.30 = 48,109.40/x
  3. Step 3: Cross multiply
    53,912.60x = 80,883.30 × 48,109.40
  4. Step 4: Simplify right side
    53,912.60x = 3,891,247,033.02
  5. Step 5: Solve for x
    x = 3,891,247,033.02/53,912.60
  6. Step 6: Final answer
    x = 72,176.95

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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.