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Finding the Fourth Proportional to 45,804.50, 68,716.54 and 14,213.88

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Solution

The fourth proportional to 45,804.50, 68,716.54 and 14,213.88 is: 21,323.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,804.50 : 68,716.54 = 14,213.88 : x
  2. Step 2: Convert to fraction form
    45,804.50/68,716.54 = 14,213.88/x
  3. Step 3: Cross multiply
    45,804.50x = 68,716.54 × 14,213.88
  4. Step 4: Simplify right side
    45,804.50x = 976,728,653.58
  5. Step 5: Solve for x
    x = 976,728,653.58/45,804.50
  6. Step 6: Final answer
    x = 21,323.86

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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.