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Finding the Fourth Proportional to 29,187.80, 43,752.90 and 14,384.60

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Solution

The fourth proportional to 29,187.80, 43,752.90 and 14,384.60 is: 21,562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,187.80 : 43,752.90 = 14,384.60 : x
  2. Step 2: Convert to fraction form
    29,187.80/43,752.90 = 14,384.60/x
  3. Step 3: Cross multiply
    29,187.80x = 43,752.90 × 14,384.60
  4. Step 4: Simplify right side
    29,187.80x = 629,367,965.34
  5. Step 5: Solve for x
    x = 629,367,965.34/29,187.80
  6. Step 6: Final answer
    x = 21,562.71

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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.