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Finding the Fourth Proportional to 29,866.80, 44,821.80 and 16,705.20

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Solution

The fourth proportional to 29,866.80, 44,821.80 and 16,705.20 is: 25,069.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,866.80 : 44,821.80 = 16,705.20 : x
  2. Step 2: Convert to fraction form
    29,866.80/44,821.80 = 16,705.20/x
  3. Step 3: Cross multiply
    29,866.80x = 44,821.80 × 16,705.20
  4. Step 4: Simplify right side
    29,866.80x = 748,757,133.36
  5. Step 5: Solve for x
    x = 748,757,133.36/29,866.80
  6. Step 6: Final answer
    x = 25,069.88

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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.