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Finding the Fourth Proportional to 3,346.15, 5,019.21 and 847.36

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Solution

The fourth proportional to 3,346.15, 5,019.21 and 847.36 is: 1,271.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,346.15 : 5,019.21 = 847.36 : x
  2. Step 2: Convert to fraction form
    3,346.15/5,019.21 = 847.36/x
  3. Step 3: Cross multiply
    3,346.15x = 5,019.21 × 847.36
  4. Step 4: Simplify right side
    3,346.15x = 4,253,075.67
  5. Step 5: Solve for x
    x = 4,253,075.67/3,346.15
  6. Step 6: Final answer
    x = 1,271.04

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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.