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Finding the Third Proportional to 2,870.44 and 6,287.63

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Solution

The third proportional to 2,870.44 and 6,287.63 is: 13,772.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.44 : 6,287.63 = 6,287.63 : x
  2. Step 2: Convert to fraction form
    2,870.44/6,287.63 = 6,287.63/x
  3. Step 3: Cross multiply
    2,870.44x = 6,287.63 × 6,287.63
  4. Step 4: Simplify right side
    2,870.44x = 39,534,228.14
  5. Step 5: Solve for x
    x = 39,534,228.14/2,870.44
  6. Step 6: Final answer
    x = 13,772.89

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.