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Finding the Third Proportional to 4,378.50 and 6,798

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Solution

The third proportional to 4,378.50 and 6,798 is: 10,554.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.50 : 6,798 = 6,798 : x
  2. Step 2: Convert to fraction form
    4,378.50/6,798 = 6,798/x
  3. Step 3: Cross multiply
    4,378.50x = 6,798 × 6,798
  4. Step 4: Simplify right side
    4,378.50x = 46,212,804
  5. Step 5: Solve for x
    x = 46,212,804/4,378.50
  6. Step 6: Final answer
    x = 10,554.48

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.