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Finding the Fourth Proportional to 4,690.98, 7,015.80 and 4,174.62

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Solution

The fourth proportional to 4,690.98, 7,015.80 and 4,174.62 is: 6,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.98 : 7,015.80 = 4,174.62 : x
  2. Step 2: Convert to fraction form
    4,690.98/7,015.80 = 4,174.62/x
  3. Step 3: Cross multiply
    4,690.98x = 7,015.80 × 4,174.62
  4. Step 4: Simplify right side
    4,690.98x = 29,288,299.00
  5. Step 5: Solve for x
    x = 29,288,299.00/4,690.98
  6. Step 6: Final answer
    x = 6,243.54

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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.