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Finding the Third Proportional to 18,623.25 and 36,312.75

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Solution

The third proportional to 18,623.25 and 36,312.75 is: 70,804.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,623.25 : 36,312.75 = 36,312.75 : x
  2. Step 2: Convert to fraction form
    18,623.25/36,312.75 = 36,312.75/x
  3. Step 3: Cross multiply
    18,623.25x = 36,312.75 × 36,312.75
  4. Step 4: Simplify right side
    18,623.25x = 1,318,615,812.56
  5. Step 5: Solve for x
    x = 1,318,615,812.56/18,623.25
  6. Step 6: Final answer
    x = 70,804.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.