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Finding the Fourth Proportional to 54,367.68, 81,538.74 and 14,927.88

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Solution

The fourth proportional to 54,367.68, 81,538.74 and 14,927.88 is: 22,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,367.68 : 81,538.74 = 14,927.88 : x
  2. Step 2: Convert to fraction form
    54,367.68/81,538.74 = 14,927.88/x
  3. Step 3: Cross multiply
    54,367.68x = 81,538.74 × 14,927.88
  4. Step 4: Simplify right side
    54,367.68x = 1,217,200,526.07
  5. Step 5: Solve for x
    x = 1,217,200,526.07/54,367.68
  6. Step 6: Final answer
    x = 22,388.31

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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.