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Finding the Fourth Proportional to 52,472.58, 78,687.99 and 19,185.06

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Solution

The fourth proportional to 52,472.58, 78,687.99 and 19,185.06 is: 28,769.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,472.58 : 78,687.99 = 19,185.06 : x
  2. Step 2: Convert to fraction form
    52,472.58/78,687.99 = 19,185.06/x
  3. Step 3: Cross multiply
    52,472.58x = 78,687.99 × 19,185.06
  4. Step 4: Simplify right side
    52,472.58x = 1,509,633,809.43
  5. Step 5: Solve for x
    x = 1,509,633,809.43/52,472.58
  6. Step 6: Final answer
    x = 28,769.96

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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.