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Finding the Fourth Proportional to 5,297.50, 7,890.26 and 5,019.94

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Solution

The fourth proportional to 5,297.50, 7,890.26 and 5,019.94 is: 7,476.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,297.50 : 7,890.26 = 5,019.94 : x
  2. Step 2: Convert to fraction form
    5,297.50/7,890.26 = 5,019.94/x
  3. Step 3: Cross multiply
    5,297.50x = 7,890.26 × 5,019.94
  4. Step 4: Simplify right side
    5,297.50x = 39,608,631.78
  5. Step 5: Solve for x
    x = 39,608,631.78/5,297.50
  6. Step 6: Final answer
    x = 7,476.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.