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Finding the Fourth Proportional to 36,689.25, 50,631.18 and 19,922.25

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Solution

The fourth proportional to 36,689.25, 50,631.18 and 19,922.25 is: 27,492.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,689.25 : 50,631.18 = 19,922.25 : x
  2. Step 2: Convert to fraction form
    36,689.25/50,631.18 = 19,922.25/x
  3. Step 3: Cross multiply
    36,689.25x = 50,631.18 × 19,922.25
  4. Step 4: Simplify right side
    36,689.25x = 1,008,687,025.76
  5. Step 5: Solve for x
    x = 1,008,687,025.76/36,689.25
  6. Step 6: Final answer
    x = 27,492.71

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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.