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Finding the Fourth Proportional to 18,693.92, 25,797.56 and 10,736.66

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Solution

The fourth proportional to 18,693.92, 25,797.56 and 10,736.66 is: 14,816.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.92 : 25,797.56 = 10,736.66 : x
  2. Step 2: Convert to fraction form
    18,693.92/25,797.56 = 10,736.66/x
  3. Step 3: Cross multiply
    18,693.92x = 25,797.56 × 10,736.66
  4. Step 4: Simplify right side
    18,693.92x = 276,979,630.55
  5. Step 5: Solve for x
    x = 276,979,630.55/18,693.92
  6. Step 6: Final answer
    x = 14,816.56

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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.