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Finding the Fourth Proportional to 5,213.01, 7,821.05 and 1,703.67

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Solution

The fourth proportional to 5,213.01, 7,821.05 and 1,703.67 is: 2,556.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.01 : 7,821.05 = 1,703.67 : x
  2. Step 2: Convert to fraction form
    5,213.01/7,821.05 = 1,703.67/x
  3. Step 3: Cross multiply
    5,213.01x = 7,821.05 × 1,703.67
  4. Step 4: Simplify right side
    5,213.01x = 13,324,488.25
  5. Step 5: Solve for x
    x = 13,324,488.25/5,213.01
  6. Step 6: Final answer
    x = 2,556.01

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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.