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Finding the Fourth Proportional to 52,772.80, 79,213.76 and 35,364.28

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Solution

The fourth proportional to 52,772.80, 79,213.76 and 35,364.28 is: 53,082.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,772.80 : 79,213.76 = 35,364.28 : x
  2. Step 2: Convert to fraction form
    52,772.80/79,213.76 = 35,364.28/x
  3. Step 3: Cross multiply
    52,772.80x = 79,213.76 × 35,364.28
  4. Step 4: Simplify right side
    52,772.80x = 2,801,337,588.49
  5. Step 5: Solve for x
    x = 2,801,337,588.49/52,772.80
  6. Step 6: Final answer
    x = 53,082.98

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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.