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Finding the Third Proportional to 2,315.75 and 2,528.50

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Solution

The third proportional to 2,315.75 and 2,528.50 is: 2,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.75 : 2,528.50 = 2,528.50 : x
  2. Step 2: Convert to fraction form
    2,315.75/2,528.50 = 2,528.50/x
  3. Step 3: Cross multiply
    2,315.75x = 2,528.50 × 2,528.50
  4. Step 4: Simplify right side
    2,315.75x = 6,393,312.25
  5. Step 5: Solve for x
    x = 6,393,312.25/2,315.75
  6. Step 6: Final answer
    x = 2,760.80

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.