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Finding the Fourth Proportional to 7,010.70, 10,516.05 and 3,900.30

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Solution

The fourth proportional to 7,010.70, 10,516.05 and 3,900.30 is: 5,850.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,010.70 : 10,516.05 = 3,900.30 : x
  2. Step 2: Convert to fraction form
    7,010.70/10,516.05 = 3,900.30/x
  3. Step 3: Cross multiply
    7,010.70x = 10,516.05 × 3,900.30
  4. Step 4: Simplify right side
    7,010.70x = 41,015,749.82
  5. Step 5: Solve for x
    x = 41,015,749.82/7,010.70
  6. Step 6: Final answer
    x = 5,850.45

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Similar ratio
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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.