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Finding the Fourth Proportional to 63,214.68, 87,238.90 and 36,357.20

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Solution

The fourth proportional to 63,214.68, 87,238.90 and 36,357.20 is: 50,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,214.68 : 87,238.90 = 36,357.20 : x
  2. Step 2: Convert to fraction form
    63,214.68/87,238.90 = 36,357.20/x
  3. Step 3: Cross multiply
    63,214.68x = 87,238.90 × 36,357.20
  4. Step 4: Simplify right side
    63,214.68x = 3,171,762,135.08
  5. Step 5: Solve for x
    x = 3,171,762,135.08/63,214.68
  6. Step 6: Final answer
    x = 50,174.46

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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.