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Finding the Third Proportional to 18,929.81 and 28,028.25

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Solution

The third proportional to 18,929.81 and 28,028.25 is: 41,499.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.81 : 28,028.25 = 28,028.25 : x
  2. Step 2: Convert to fraction form
    18,929.81/28,028.25 = 28,028.25/x
  3. Step 3: Cross multiply
    18,929.81x = 28,028.25 × 28,028.25
  4. Step 4: Simplify right side
    18,929.81x = 785,582,798.06
  5. Step 5: Solve for x
    x = 785,582,798.06/18,929.81
  6. Step 6: Final answer
    x = 41,499.77

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.