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Finding the Fourth Proportional to 18,976.83, 26,182.92 and 12,260.01

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Solution

The fourth proportional to 18,976.83, 26,182.92 and 12,260.01 is: 16,915.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.83 : 26,182.92 = 12,260.01 : x
  2. Step 2: Convert to fraction form
    18,976.83/26,182.92 = 12,260.01/x
  3. Step 3: Cross multiply
    18,976.83x = 26,182.92 × 12,260.01
  4. Step 4: Simplify right side
    18,976.83x = 321,002,861.03
  5. Step 5: Solve for x
    x = 321,002,861.03/18,976.83
  6. Step 6: Final answer
    x = 16,915.52

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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.