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Finding the Third Proportional to 5,680 and 8,576

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Solution

The third proportional to 5,680 and 8,576 is: 12,948.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680 : 8,576 = 8,576 : x
  2. Step 2: Convert to fraction form
    5,680/8,576 = 8,576/x
  3. Step 3: Cross multiply
    5,680x = 8,576 × 8,576
  4. Step 4: Simplify right side
    5,680x = 73,547,776
  5. Step 5: Solve for x
    x = 73,547,776/5,680
  6. Step 6: Final answer
    x = 12,948.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.