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Finding the Fourth Proportional to 63,507.42, 87,640.65 and 36,651.06

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Solution

The fourth proportional to 63,507.42, 87,640.65 and 36,651.06 is: 50,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,507.42 : 87,640.65 = 36,651.06 : x
  2. Step 2: Convert to fraction form
    63,507.42/87,640.65 = 36,651.06/x
  3. Step 3: Cross multiply
    63,507.42x = 87,640.65 × 36,651.06
  4. Step 4: Simplify right side
    63,507.42x = 3,212,122,721.59
  5. Step 5: Solve for x
    x = 3,212,122,721.59/63,507.42
  6. Step 6: Final answer
    x = 50,578.70

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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.