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Finding the Third Proportional to 13,215.66 and 28,352.53

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Solution

The third proportional to 13,215.66 and 28,352.53 is: 60,826.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.66 : 28,352.53 = 28,352.53 : x
  2. Step 2: Convert to fraction form
    13,215.66/28,352.53 = 28,352.53/x
  3. Step 3: Cross multiply
    13,215.66x = 28,352.53 × 28,352.53
  4. Step 4: Simplify right side
    13,215.66x = 803,866,028.28
  5. Step 5: Solve for x
    x = 803,866,028.28/13,215.66
  6. Step 6: Final answer
    x = 60,826.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.