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Finding the Fourth Proportional to 63,215.68, 87,240.28 and 36,358.20

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Solution

The fourth proportional to 63,215.68, 87,240.28 and 36,358.20 is: 50,175.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,215.68 : 87,240.28 = 36,358.20 : x
  2. Step 2: Convert to fraction form
    63,215.68/87,240.28 = 36,358.20/x
  3. Step 3: Cross multiply
    63,215.68x = 87,240.28 × 36,358.20
  4. Step 4: Simplify right side
    63,215.68x = 3,171,899,548.30
  5. Step 5: Solve for x
    x = 3,171,899,548.30/63,215.68
  6. Step 6: Final answer
    x = 50,175.84

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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.