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Finding the Fourth Proportional to 52,672.27, 72,687.74 and 28,798.96

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Solution

The fourth proportional to 52,672.27, 72,687.74 and 28,798.96 is: 39,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,672.27 : 72,687.74 = 28,798.96 : x
  2. Step 2: Convert to fraction form
    52,672.27/72,687.74 = 28,798.96/x
  3. Step 3: Cross multiply
    52,672.27x = 72,687.74 × 28,798.96
  4. Step 4: Simplify right side
    52,672.27x = 2,093,330,991.04
  5. Step 5: Solve for x
    x = 2,093,330,991.04/52,672.27
  6. Step 6: Final answer
    x = 39,742.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.