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Finding the Fourth Proportional to 45,276.09, 67,914.09 and 15,693.90

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Solution

The fourth proportional to 45,276.09, 67,914.09 and 15,693.90 is: 23,540.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,276.09 : 67,914.09 = 15,693.90 : x
  2. Step 2: Convert to fraction form
    45,276.09/67,914.09 = 15,693.90/x
  3. Step 3: Cross multiply
    45,276.09x = 67,914.09 × 15,693.90
  4. Step 4: Simplify right side
    45,276.09x = 1,065,836,937.05
  5. Step 5: Solve for x
    x = 1,065,836,937.05/45,276.09
  6. Step 6: Final answer
    x = 23,540.83

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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.