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Finding the Third Proportional to 4,822.50 and 11,685

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Solution

The third proportional to 4,822.50 and 11,685 is: 28,312.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,822.50 : 11,685 = 11,685 : x
  2. Step 2: Convert to fraction form
    4,822.50/11,685 = 11,685/x
  3. Step 3: Cross multiply
    4,822.50x = 11,685 × 11,685
  4. Step 4: Simplify right side
    4,822.50x = 136,539,225
  5. Step 5: Solve for x
    x = 136,539,225/4,822.50
  6. Step 6: Final answer
    x = 28,312.95

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.