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Finding the Fourth Proportional to 5,073.45, 7,001.43 and 2,949.15

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Solution

The fourth proportional to 5,073.45, 7,001.43 and 2,949.15 is: 4,069.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,073.45 : 7,001.43 = 2,949.15 : x
  2. Step 2: Convert to fraction form
    5,073.45/7,001.43 = 2,949.15/x
  3. Step 3: Cross multiply
    5,073.45x = 7,001.43 × 2,949.15
  4. Step 4: Simplify right side
    5,073.45x = 20,648,267.28
  5. Step 5: Solve for x
    x = 20,648,267.28/5,073.45
  6. Step 6: Final answer
    x = 4,069.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.