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Finding the Third Proportional to 2,156.50 and 2,453

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Solution

The third proportional to 2,156.50 and 2,453 is: 2,790.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.50 : 2,453 = 2,453 : x
  2. Step 2: Convert to fraction form
    2,156.50/2,453 = 2,453/x
  3. Step 3: Cross multiply
    2,156.50x = 2,453 × 2,453
  4. Step 4: Simplify right side
    2,156.50x = 6,017,209
  5. Step 5: Solve for x
    x = 6,017,209/2,156.50
  6. Step 6: Final answer
    x = 2,790.27

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.