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Finding the Fourth Proportional to 63,215.43, 87,239.93 and 36,357.94

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Solution

The fourth proportional to 63,215.43, 87,239.93 and 36,357.94 is: 50,175.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,215.43 : 87,239.93 = 36,357.94 : x
  2. Step 2: Convert to fraction form
    63,215.43/87,239.93 = 36,357.94/x
  3. Step 3: Cross multiply
    63,215.43x = 87,239.93 × 36,357.94
  4. Step 4: Simplify right side
    63,215.43x = 3,171,864,140.54
  5. Step 5: Solve for x
    x = 3,171,864,140.54/63,215.43
  6. Step 6: Final answer
    x = 50,175.47

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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.