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Finding the Third Proportional to 4,276.13 and 6,886.69

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Solution

The third proportional to 4,276.13 and 6,886.69 is: 11,090.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,276.13 : 6,886.69 = 6,886.69 : x
  2. Step 2: Convert to fraction form
    4,276.13/6,886.69 = 6,886.69/x
  3. Step 3: Cross multiply
    4,276.13x = 6,886.69 × 6,886.69
  4. Step 4: Simplify right side
    4,276.13x = 47,426,464.72
  5. Step 5: Solve for x
    x = 47,426,464.72/4,276.13
  6. Step 6: Final answer
    x = 11,090.99

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.