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Finding the Third Proportional to 12,948.20 and 28,618.68

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Solution

The third proportional to 12,948.20 and 28,618.68 is: 63,254.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.20 : 28,618.68 = 28,618.68 : x
  2. Step 2: Convert to fraction form
    12,948.20/28,618.68 = 28,618.68/x
  3. Step 3: Cross multiply
    12,948.20x = 28,618.68 × 28,618.68
  4. Step 4: Simplify right side
    12,948.20x = 819,028,750.20
  5. Step 5: Solve for x
    x = 819,028,750.20/12,948.20
  6. Step 6: Final answer
    x = 63,254.24

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.