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Finding the Fourth Proportional to 13,892.92, 20,839.38 and 6,101.80

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Solution

The fourth proportional to 13,892.92, 20,839.38 and 6,101.80 is: 9,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.92 : 20,839.38 = 6,101.80 : x
  2. Step 2: Convert to fraction form
    13,892.92/20,839.38 = 6,101.80/x
  3. Step 3: Cross multiply
    13,892.92x = 20,839.38 × 6,101.80
  4. Step 4: Simplify right side
    13,892.92x = 127,157,728.88
  5. Step 5: Solve for x
    x = 127,157,728.88/13,892.92
  6. Step 6: Final answer
    x = 9,152.70

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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.