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Finding the Fourth Proportional to 45,993.43, 68,990.14 and 14,405.96

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Solution

The fourth proportional to 45,993.43, 68,990.14 and 14,405.96 is: 21,608.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,993.43 : 68,990.14 = 14,405.96 : x
  2. Step 2: Convert to fraction form
    45,993.43/68,990.14 = 14,405.96/x
  3. Step 3: Cross multiply
    45,993.43x = 68,990.14 × 14,405.96
  4. Step 4: Simplify right side
    45,993.43x = 993,868,852.28
  5. Step 5: Solve for x
    x = 993,868,852.28/45,993.43
  6. Step 6: Final answer
    x = 21,608.93

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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.