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Finding the Fourth Proportional to 2,029.45, 3,044.06 and 712.79

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Solution

The fourth proportional to 2,029.45, 3,044.06 and 712.79 is: 1,069.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.45 : 3,044.06 = 712.79 : x
  2. Step 2: Convert to fraction form
    2,029.45/3,044.06 = 712.79/x
  3. Step 3: Cross multiply
    2,029.45x = 3,044.06 × 712.79
  4. Step 4: Simplify right side
    2,029.45x = 2,169,775.53
  5. Step 5: Solve for x
    x = 2,169,775.53/2,029.45
  6. Step 6: Final answer
    x = 1,069.14

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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.