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Finding the Fourth Proportional to 5,181.96, 7,722.95 and 5,173.73

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Solution

The fourth proportional to 5,181.96, 7,722.95 and 5,173.73 is: 7,710.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.96 : 7,722.95 = 5,173.73 : x
  2. Step 2: Convert to fraction form
    5,181.96/7,722.95 = 5,173.73/x
  3. Step 3: Cross multiply
    5,181.96x = 7,722.95 × 5,173.73
  4. Step 4: Simplify right side
    5,181.96x = 39,956,393.62
  5. Step 5: Solve for x
    x = 39,956,393.62/5,181.96
  6. Step 6: Final answer
    x = 7,710.67

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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.