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Finding the Fourth Proportional to 18,859.86, 26,027.10 and 11,307.42

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Solution

The fourth proportional to 18,859.86, 26,027.10 and 11,307.42 is: 15,604.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.86 : 26,027.10 = 11,307.42 : x
  2. Step 2: Convert to fraction form
    18,859.86/26,027.10 = 11,307.42/x
  3. Step 3: Cross multiply
    18,859.86x = 26,027.10 × 11,307.42
  4. Step 4: Simplify right side
    18,859.86x = 294,299,351.08
  5. Step 5: Solve for x
    x = 294,299,351.08/18,859.86
  6. Step 6: Final answer
    x = 15,604.54

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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.