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Finding the Fourth Proportional to 66,974.43, 100,460.03 and 17,054.64

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Solution

The fourth proportional to 66,974.43, 100,460.03 and 17,054.64 is: 25,581.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,974.43 : 100,460.03 = 17,054.64 : x
  2. Step 2: Convert to fraction form
    66,974.43/100,460.03 = 17,054.64/x
  3. Step 3: Cross multiply
    66,974.43x = 100,460.03 × 17,054.64
  4. Step 4: Simplify right side
    66,974.43x = 1,713,309,560.77
  5. Step 5: Solve for x
    x = 1,713,309,560.77/66,974.43
  6. Step 6: Final answer
    x = 25,581.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.