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Finding the Third Proportional to 1,569.35 and 3,378.92

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Solution

The third proportional to 1,569.35 and 3,378.92 is: 7,275.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.35 : 3,378.92 = 3,378.92 : x
  2. Step 2: Convert to fraction form
    1,569.35/3,378.92 = 3,378.92/x
  3. Step 3: Cross multiply
    1,569.35x = 3,378.92 × 3,378.92
  4. Step 4: Simplify right side
    1,569.35x = 11,417,124.08
  5. Step 5: Solve for x
    x = 11,417,124.08/1,569.35
  6. Step 6: Final answer
    x = 7,275.09

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.