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Finding the Fourth Proportional to 18,859.98, 26,027.19 and 10,902.54

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Solution

The fourth proportional to 18,859.98, 26,027.19 and 10,902.54 is: 15,045.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.98 : 26,027.19 = 10,902.54 : x
  2. Step 2: Convert to fraction form
    18,859.98/26,027.19 = 10,902.54/x
  3. Step 3: Cross multiply
    18,859.98x = 26,027.19 × 10,902.54
  4. Step 4: Simplify right side
    18,859.98x = 283,762,480.06
  5. Step 5: Solve for x
    x = 283,762,480.06/18,859.98
  6. Step 6: Final answer
    x = 15,045.75

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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.