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Finding the Fourth Proportional to 50,957.80, 76,436.70 and 13,517.80

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Solution

The fourth proportional to 50,957.80, 76,436.70 and 13,517.80 is: 20,276.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,957.80 : 76,436.70 = 13,517.80 : x
  2. Step 2: Convert to fraction form
    50,957.80/76,436.70 = 13,517.80/x
  3. Step 3: Cross multiply
    50,957.80x = 76,436.70 × 13,517.80
  4. Step 4: Simplify right side
    50,957.80x = 1,033,256,023.26
  5. Step 5: Solve for x
    x = 1,033,256,023.26/50,957.80
  6. Step 6: Final answer
    x = 20,276.70

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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.