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Finding the Fourth Proportional to 45,213.40, 67,836.48 and 27,480.34

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Solution

The fourth proportional to 45,213.40, 67,836.48 and 27,480.34 is: 41,230.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,213.40 : 67,836.48 = 27,480.34 : x
  2. Step 2: Convert to fraction form
    45,213.40/67,836.48 = 27,480.34/x
  3. Step 3: Cross multiply
    45,213.40x = 67,836.48 × 27,480.34
  4. Step 4: Simplify right side
    45,213.40x = 1,864,169,534.80
  5. Step 5: Solve for x
    x = 1,864,169,534.80/45,213.40
  6. Step 6: Final answer
    x = 41,230.47

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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.