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Finding the Fourth Proportional to 36,495.92, 50,361.68 and 21,387.68

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Solution

The fourth proportional to 36,495.92, 50,361.68 and 21,387.68 is: 29,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,495.92 : 50,361.68 = 21,387.68 : x
  2. Step 2: Convert to fraction form
    36,495.92/50,361.68 = 21,387.68/x
  3. Step 3: Cross multiply
    36,495.92x = 50,361.68 × 21,387.68
  4. Step 4: Simplify right side
    36,495.92x = 1,077,119,496.10
  5. Step 5: Solve for x
    x = 1,077,119,496.10/36,495.92
  6. Step 6: Final answer
    x = 29,513.42

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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.