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Finding the Fourth Proportional to 36,876.57, 50,894.03 and 20,963.42

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Solution

The fourth proportional to 36,876.57, 50,894.03 and 20,963.42 is: 28,931.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,876.57 : 50,894.03 = 20,963.42 : x
  2. Step 2: Convert to fraction form
    36,876.57/50,894.03 = 20,963.42/x
  3. Step 3: Cross multiply
    36,876.57x = 50,894.03 × 20,963.42
  4. Step 4: Simplify right side
    36,876.57x = 1,066,912,567.10
  5. Step 5: Solve for x
    x = 1,066,912,567.10/36,876.57
  6. Step 6: Final answer
    x = 28,931.99

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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.