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Finding the Fourth Proportional to 18,857.54, 26,023.56 and 11,788.14

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Solution

The fourth proportional to 18,857.54, 26,023.56 and 11,788.14 is: 16,267.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.54 : 26,023.56 = 11,788.14 : x
  2. Step 2: Convert to fraction form
    18,857.54/26,023.56 = 11,788.14/x
  3. Step 3: Cross multiply
    18,857.54x = 26,023.56 × 11,788.14
  4. Step 4: Simplify right side
    18,857.54x = 306,769,368.58
  5. Step 5: Solve for x
    x = 306,769,368.58/18,857.54
  6. Step 6: Final answer
    x = 16,267.73

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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.