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Finding the Fourth Proportional to 36,456.64, 50,310.15 and 19,689.64

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Solution

The fourth proportional to 36,456.64, 50,310.15 and 19,689.64 is: 27,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,456.64 : 50,310.15 = 19,689.64 : x
  2. Step 2: Convert to fraction form
    36,456.64/50,310.15 = 19,689.64/x
  3. Step 3: Cross multiply
    36,456.64x = 50,310.15 × 19,689.64
  4. Step 4: Simplify right side
    36,456.64x = 990,588,741.85
  5. Step 5: Solve for x
    x = 990,588,741.85/36,456.64
  6. Step 6: Final answer
    x = 27,171.70

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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.