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Finding the Third Proportional to 2,157.75 and 4,954.50

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Solution

The third proportional to 2,157.75 and 4,954.50 is: 11,376.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.75 : 4,954.50 = 4,954.50 : x
  2. Step 2: Convert to fraction form
    2,157.75/4,954.50 = 4,954.50/x
  3. Step 3: Cross multiply
    2,157.75x = 4,954.50 × 4,954.50
  4. Step 4: Simplify right side
    2,157.75x = 24,547,070.25
  5. Step 5: Solve for x
    x = 24,547,070.25/2,157.75
  6. Step 6: Final answer
    x = 11,376.23

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.