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Finding the Fourth Proportional to 4,773.98, 7,158.68 and 1,487.09

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Solution

The fourth proportional to 4,773.98, 7,158.68 and 1,487.09 is: 2,229.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,773.98 : 7,158.68 = 1,487.09 : x
  2. Step 2: Convert to fraction form
    4,773.98/7,158.68 = 1,487.09/x
  3. Step 3: Cross multiply
    4,773.98x = 7,158.68 × 1,487.09
  4. Step 4: Simplify right side
    4,773.98x = 10,645,558.21
  5. Step 5: Solve for x
    x = 10,645,558.21/4,773.98
  6. Step 6: Final answer
    x = 2,229.91

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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.