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Finding the Third Proportional to 5,458.96 and 8,628.13

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Solution

The third proportional to 5,458.96 and 8,628.13 is: 13,637.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.96 : 8,628.13 = 8,628.13 : x
  2. Step 2: Convert to fraction form
    5,458.96/8,628.13 = 8,628.13/x
  3. Step 3: Cross multiply
    5,458.96x = 8,628.13 × 8,628.13
  4. Step 4: Simplify right side
    5,458.96x = 74,444,652.66
  5. Step 5: Solve for x
    x = 74,444,652.66/5,458.96
  6. Step 6: Final answer
    x = 13,637.16

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.