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Finding the Fourth Proportional to 50,689.70, 69,948.96 and 28,027.33

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Solution

The fourth proportional to 50,689.70, 69,948.96 and 28,027.33 is: 38,676.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,689.70 : 69,948.96 = 28,027.33 : x
  2. Step 2: Convert to fraction form
    50,689.70/69,948.96 = 28,027.33/x
  3. Step 3: Cross multiply
    50,689.70x = 69,948.96 × 28,027.33
  4. Step 4: Simplify right side
    50,689.70x = 1,960,482,585.08
  5. Step 5: Solve for x
    x = 1,960,482,585.08/50,689.70
  6. Step 6: Final answer
    x = 38,676.15

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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.