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Finding the Fourth Proportional to 45,672.92, 68,505.78 and 14,508.44

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Solution

The fourth proportional to 45,672.92, 68,505.78 and 14,508.44 is: 21,761.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,672.92 : 68,505.78 = 14,508.44 : x
  2. Step 2: Convert to fraction form
    45,672.92/68,505.78 = 14,508.44/x
  3. Step 3: Cross multiply
    45,672.92x = 68,505.78 × 14,508.44
  4. Step 4: Simplify right side
    45,672.92x = 993,911,998.78
  5. Step 5: Solve for x
    x = 993,911,998.78/45,672.92
  6. Step 6: Final answer
    x = 21,761.52

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1.5x scale

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.