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Finding the Fourth Proportional to 18,906.52, 26,099.94 and 12,623.08

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Solution

The fourth proportional to 18,906.52, 26,099.94 and 12,623.08 is: 17,425.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,906.52 : 26,099.94 = 12,623.08 : x
  2. Step 2: Convert to fraction form
    18,906.52/26,099.94 = 12,623.08/x
  3. Step 3: Cross multiply
    18,906.52x = 26,099.94 × 12,623.08
  4. Step 4: Simplify right side
    18,906.52x = 329,461,630.62
  5. Step 5: Solve for x
    x = 329,461,630.62/18,906.52
  6. Step 6: Final answer
    x = 17,425.82

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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.