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Finding the Third Proportional to 2,890.13 and 4,429.13

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Solution

The third proportional to 2,890.13 and 4,429.13 is: 6,787.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.13 : 4,429.13 = 4,429.13 : x
  2. Step 2: Convert to fraction form
    2,890.13/4,429.13 = 4,429.13/x
  3. Step 3: Cross multiply
    2,890.13x = 4,429.13 × 4,429.13
  4. Step 4: Simplify right side
    2,890.13x = 19,617,148.27
  5. Step 5: Solve for x
    x = 19,617,148.27/2,890.13
  6. Step 6: Final answer
    x = 6,787.65

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.