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Finding the Fourth Proportional to 45,874.07, 68,811.20 and 12,594.59

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Solution

The fourth proportional to 45,874.07, 68,811.20 and 12,594.59 is: 18,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,874.07 : 68,811.20 = 12,594.59 : x
  2. Step 2: Convert to fraction form
    45,874.07/68,811.20 = 12,594.59/x
  3. Step 3: Cross multiply
    45,874.07x = 68,811.20 × 12,594.59
  4. Step 4: Simplify right side
    45,874.07x = 866,648,851.41
  5. Step 5: Solve for x
    x = 866,648,851.41/45,874.07
  6. Step 6: Final answer
    x = 18,891.91

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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.