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Finding the Fourth Proportional to 4,748.13, 7,108.32 and 2,767.71

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Solution

The fourth proportional to 4,748.13, 7,108.32 and 2,767.71 is: 4,143.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.13 : 7,108.32 = 2,767.71 : x
  2. Step 2: Convert to fraction form
    4,748.13/7,108.32 = 2,767.71/x
  3. Step 3: Cross multiply
    4,748.13x = 7,108.32 × 2,767.71
  4. Step 4: Simplify right side
    4,748.13x = 19,673,768.35
  5. Step 5: Solve for x
    x = 19,673,768.35/4,748.13
  6. Step 6: Final answer
    x = 4,143.48

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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.