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Finding the Fourth Proportional to 52,855.56, 79,127.82 and 35,281.80

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Solution

The fourth proportional to 52,855.56, 79,127.82 and 35,281.80 is: 52,818.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,855.56 : 79,127.82 = 35,281.80 : x
  2. Step 2: Convert to fraction form
    52,855.56/79,127.82 = 35,281.80/x
  3. Step 3: Cross multiply
    52,855.56x = 79,127.82 × 35,281.80
  4. Step 4: Simplify right side
    52,855.56x = 2,791,771,919.68
  5. Step 5: Solve for x
    x = 2,791,771,919.68/52,855.56
  6. Step 6: Final answer
    x = 52,818.89

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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.