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Finding the Fourth Proportional to 4,372.70, 6,553.28 and 1,774.22

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Solution

The fourth proportional to 4,372.70, 6,553.28 and 1,774.22 is: 2,658.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,372.70 : 6,553.28 = 1,774.22 : x
  2. Step 2: Convert to fraction form
    4,372.70/6,553.28 = 1,774.22/x
  3. Step 3: Cross multiply
    4,372.70x = 6,553.28 × 1,774.22
  4. Step 4: Simplify right side
    4,372.70x = 11,626,918.80
  5. Step 5: Solve for x
    x = 11,626,918.80/4,372.70
  6. Step 6: Final answer
    x = 2,658.98

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1.5x scale

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.