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Finding the Fourth Proportional to 52,337.71, 78,460.62 and 20,770.03

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Solution

The fourth proportional to 52,337.71, 78,460.62 and 20,770.03 is: 31,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,337.71 : 78,460.62 = 20,770.03 : x
  2. Step 2: Convert to fraction form
    52,337.71/78,460.62 = 20,770.03/x
  3. Step 3: Cross multiply
    52,337.71x = 78,460.62 × 20,770.03
  4. Step 4: Simplify right side
    52,337.71x = 1,629,629,451.41
  5. Step 5: Solve for x
    x = 1,629,629,451.41/52,337.71
  6. Step 6: Final answer
    x = 31,136.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.