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Finding the Third Proportional to 8,957.25 and 13,916.25

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Solution

The third proportional to 8,957.25 and 13,916.25 is: 21,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.25 : 13,916.25 = 13,916.25 : x
  2. Step 2: Convert to fraction form
    8,957.25/13,916.25 = 13,916.25/x
  3. Step 3: Cross multiply
    8,957.25x = 13,916.25 × 13,916.25
  4. Step 4: Simplify right side
    8,957.25x = 193,662,014.06
  5. Step 5: Solve for x
    x = 193,662,014.06/8,957.25
  6. Step 6: Final answer
    x = 21,620.70

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.