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Finding the Fourth Proportional to 50,689.90, 69,949.04 and 28,027.11

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Solution

The fourth proportional to 50,689.90, 69,949.04 and 28,027.11 is: 38,675.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,689.90 : 69,949.04 = 28,027.11 : x
  2. Step 2: Convert to fraction form
    50,689.90/69,949.04 = 28,027.11/x
  3. Step 3: Cross multiply
    50,689.90x = 69,949.04 × 28,027.11
  4. Step 4: Simplify right side
    50,689.90x = 1,960,469,438.47
  5. Step 5: Solve for x
    x = 1,960,469,438.47/50,689.90
  6. Step 6: Final answer
    x = 38,675.74

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1.5x scale

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.