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Finding the Fourth Proportional to 5,295.15, 7,930.89 and 5,193.54

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Solution

The fourth proportional to 5,295.15, 7,930.89 and 5,193.54 is: 7,778.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,295.15 : 7,930.89 = 5,193.54 : x
  2. Step 2: Convert to fraction form
    5,295.15/7,930.89 = 5,193.54/x
  3. Step 3: Cross multiply
    5,295.15x = 7,930.89 × 5,193.54
  4. Step 4: Simplify right side
    5,295.15x = 41,189,394.45
  5. Step 5: Solve for x
    x = 41,189,394.45/5,295.15
  6. Step 6: Final answer
    x = 7,778.70

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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.