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Finding the Fourth Proportional to 36,682.60, 50,621.16 and 21,572.32

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Solution

The fourth proportional to 36,682.60, 50,621.16 and 21,572.32 is: 29,769.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,682.60 : 50,621.16 = 21,572.32 : x
  2. Step 2: Convert to fraction form
    36,682.60/50,621.16 = 21,572.32/x
  3. Step 3: Cross multiply
    36,682.60x = 50,621.16 × 21,572.32
  4. Step 4: Simplify right side
    36,682.60x = 1,092,015,862.29
  5. Step 5: Solve for x
    x = 1,092,015,862.29/36,682.60
  6. Step 6: Final answer
    x = 29,769.31

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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.