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Finding the Fourth Proportional to 6,118.34, 9,170.50 and 2,783

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Solution

The fourth proportional to 6,118.34, 9,170.50 and 2,783 is: 4,171.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,118.34 : 9,170.50 = 2,783 : x
  2. Step 2: Convert to fraction form
    6,118.34/9,170.50 = 2,783/x
  3. Step 3: Cross multiply
    6,118.34x = 9,170.50 × 2,783
  4. Step 4: Simplify right side
    6,118.34x = 25,521,501.50
  5. Step 5: Solve for x
    x = 25,521,501.50/6,118.34
  6. Step 6: Final answer
    x = 4,171.31

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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.