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Finding the Fourth Proportional to 63,215.86, 87,240.39 and 36,358.34

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Solution

The fourth proportional to 63,215.86, 87,240.39 and 36,358.34 is: 50,175.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,215.86 : 87,240.39 = 36,358.34 : x
  2. Step 2: Convert to fraction form
    63,215.86/87,240.39 = 36,358.34/x
  3. Step 3: Cross multiply
    63,215.86x = 87,240.39 × 36,358.34
  4. Step 4: Simplify right side
    63,215.86x = 3,171,915,393.32
  5. Step 5: Solve for x
    x = 3,171,915,393.32/63,215.86
  6. Step 6: Final answer
    x = 50,175.94

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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.