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Finding the Fourth Proportional to 45,633.92, 68,450.40 and 14,043.92

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Solution

The fourth proportional to 45,633.92, 68,450.40 and 14,043.92 is: 21,065.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,633.92 : 68,450.40 = 14,043.92 : x
  2. Step 2: Convert to fraction form
    45,633.92/68,450.40 = 14,043.92/x
  3. Step 3: Cross multiply
    45,633.92x = 68,450.40 × 14,043.92
  4. Step 4: Simplify right side
    45,633.92x = 961,311,599.32
  5. Step 5: Solve for x
    x = 961,311,599.32/45,633.92
  6. Step 6: Final answer
    x = 21,065.73

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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.