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Finding the Fourth Proportional to 7,134.70, 10,703.19 and 2,203.18

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Solution

The fourth proportional to 7,134.70, 10,703.19 and 2,203.18 is: 3,305.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.70 : 10,703.19 = 2,203.18 : x
  2. Step 2: Convert to fraction form
    7,134.70/10,703.19 = 2,203.18/x
  3. Step 3: Cross multiply
    7,134.70x = 10,703.19 × 2,203.18
  4. Step 4: Simplify right side
    7,134.70x = 23,581,054.14
  5. Step 5: Solve for x
    x = 23,581,054.14/7,134.70
  6. Step 6: Final answer
    x = 3,305.12

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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.