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Finding the Third Proportional to 18,654.75 and 25,855.50

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Solution

The third proportional to 18,654.75 and 25,855.50 is: 35,835.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.75 : 25,855.50 = 25,855.50 : x
  2. Step 2: Convert to fraction form
    18,654.75/25,855.50 = 25,855.50/x
  3. Step 3: Cross multiply
    18,654.75x = 25,855.50 × 25,855.50
  4. Step 4: Simplify right side
    18,654.75x = 668,506,880.25
  5. Step 5: Solve for x
    x = 668,506,880.25/18,654.75
  6. Step 6: Final answer
    x = 35,835.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.