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Finding the Fourth Proportional to 63,535.40, 87,421.36 and 52,163

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Solution

The fourth proportional to 63,535.40, 87,421.36 and 52,163 is: 71,773.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,535.40 : 87,421.36 = 52,163 : x
  2. Step 2: Convert to fraction form
    63,535.40/87,421.36 = 52,163/x
  3. Step 3: Cross multiply
    63,535.40x = 87,421.36 × 52,163
  4. Step 4: Simplify right side
    63,535.40x = 4,560,160,401.68
  5. Step 5: Solve for x
    x = 4,560,160,401.68/63,535.40
  6. Step 6: Final answer
    x = 71,773.54

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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.