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Finding the Fourth Proportional to 45,694.98, 68,529.51 and 17,986.50

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Solution

The fourth proportional to 45,694.98, 68,529.51 and 17,986.50 is: 26,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,694.98 : 68,529.51 = 17,986.50 : x
  2. Step 2: Convert to fraction form
    45,694.98/68,529.51 = 17,986.50/x
  3. Step 3: Cross multiply
    45,694.98x = 68,529.51 × 17,986.50
  4. Step 4: Simplify right side
    45,694.98x = 1,232,606,031.62
  5. Step 5: Solve for x
    x = 1,232,606,031.62/45,694.98
  6. Step 6: Final answer
    x = 26,974.65

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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.