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Finding the Fourth Proportional to 45,874.57, 68,811.96 and 12,595.09

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Solution

The fourth proportional to 45,874.57, 68,811.96 and 12,595.09 is: 18,892.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,874.57 : 68,811.96 = 12,595.09 : x
  2. Step 2: Convert to fraction form
    45,874.57/68,811.96 = 12,595.09/x
  3. Step 3: Cross multiply
    45,874.57x = 68,811.96 × 12,595.09
  4. Step 4: Simplify right side
    45,874.57x = 866,692,422.24
  5. Step 5: Solve for x
    x = 866,692,422.24/45,874.57
  6. Step 6: Final answer
    x = 18,892.66

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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.