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Finding the Fourth Proportional to 45,783.87, 68,665.04 and 12,496.02

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Solution

The fourth proportional to 45,783.87, 68,665.04 and 12,496.02 is: 18,741.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,783.87 : 68,665.04 = 12,496.02 : x
  2. Step 2: Convert to fraction form
    45,783.87/68,665.04 = 12,496.02/x
  3. Step 3: Cross multiply
    45,783.87x = 68,665.04 × 12,496.02
  4. Step 4: Simplify right side
    45,783.87x = 858,039,650.66
  5. Step 5: Solve for x
    x = 858,039,650.66/45,783.87
  6. Step 6: Final answer
    x = 18,741.09

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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.