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Finding the Third Proportional to 2,939.63 and 6,802.31

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Solution

The third proportional to 2,939.63 and 6,802.31 is: 15,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.63 : 6,802.31 = 6,802.31 : x
  2. Step 2: Convert to fraction form
    2,939.63/6,802.31 = 6,802.31/x
  3. Step 3: Cross multiply
    2,939.63x = 6,802.31 × 6,802.31
  4. Step 4: Simplify right side
    2,939.63x = 46,271,455.35
  5. Step 5: Solve for x
    x = 46,271,455.35/2,939.63
  6. Step 6: Final answer
    x = 15,740.60

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.