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Finding the Fourth Proportional to 54,393.90, 81,588.80 and 14,949.99

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Solution

The fourth proportional to 54,393.90, 81,588.80 and 14,949.99 is: 22,424.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,393.90 : 81,588.80 = 14,949.99 : x
  2. Step 2: Convert to fraction form
    54,393.90/81,588.80 = 14,949.99/x
  3. Step 3: Cross multiply
    54,393.90x = 81,588.80 × 14,949.99
  4. Step 4: Simplify right side
    54,393.90x = 1,219,751,669.36
  5. Step 5: Solve for x
    x = 1,219,751,669.36/54,393.90
  6. Step 6: Final answer
    x = 22,424.42

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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.