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Finding the Third Proportional to 15,315.75 and 22,686.75

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Solution

The third proportional to 15,315.75 and 22,686.75 is: 33,605.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.75 : 22,686.75 = 22,686.75 : x
  2. Step 2: Convert to fraction form
    15,315.75/22,686.75 = 22,686.75/x
  3. Step 3: Cross multiply
    15,315.75x = 22,686.75 × 22,686.75
  4. Step 4: Simplify right side
    15,315.75x = 514,688,625.56
  5. Step 5: Solve for x
    x = 514,688,625.56/15,315.75
  6. Step 6: Final answer
    x = 33,605.19

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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.