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Finding the Fourth Proportional to 3,347.62, 5,020.90 and 1,267.34

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Solution

The fourth proportional to 3,347.62, 5,020.90 and 1,267.34 is: 1,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.62 : 5,020.90 = 1,267.34 : x
  2. Step 2: Convert to fraction form
    3,347.62/5,020.90 = 1,267.34/x
  3. Step 3: Cross multiply
    3,347.62x = 5,020.90 × 1,267.34
  4. Step 4: Simplify right side
    3,347.62x = 6,363,159.13
  5. Step 5: Solve for x
    x = 6,363,159.13/3,347.62
  6. Step 6: Final answer
    x = 1,900.80

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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.