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Finding the Fourth Proportional to 45,425.40, 68,113.80 and 15,844.20

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Solution

The fourth proportional to 45,425.40, 68,113.80 and 15,844.20 is: 23,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,425.40 : 68,113.80 = 15,844.20 : x
  2. Step 2: Convert to fraction form
    45,425.40/68,113.80 = 15,844.20/x
  3. Step 3: Cross multiply
    45,425.40x = 68,113.80 × 15,844.20
  4. Step 4: Simplify right side
    45,425.40x = 1,079,208,669.96
  5. Step 5: Solve for x
    x = 1,079,208,669.96/45,425.40
  6. Step 6: Final answer
    x = 23,757.82

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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.