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Finding the Third Proportional to 623.53 and 1,364.34

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Solution

The third proportional to 623.53 and 1,364.34 is: 2,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.53 : 1,364.34 = 1,364.34 : x
  2. Step 2: Convert to fraction form
    623.53/1,364.34 = 1,364.34/x
  3. Step 3: Cross multiply
    623.53x = 1,364.34 × 1,364.34
  4. Step 4: Simplify right side
    623.53x = 1,861,433.87
  5. Step 5: Solve for x
    x = 1,861,433.87/623.53
  6. Step 6: Final answer
    x = 2,985.31

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.