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Finding the Third Proportional to 4,915.69 and 6,564.80

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Solution

The third proportional to 4,915.69 and 6,564.80 is: 8,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.69 : 6,564.80 = 6,564.80 : x
  2. Step 2: Convert to fraction form
    4,915.69/6,564.80 = 6,564.80/x
  3. Step 3: Cross multiply
    4,915.69x = 6,564.80 × 6,564.80
  4. Step 4: Simplify right side
    4,915.69x = 43,096,558.01
  5. Step 5: Solve for x
    x = 43,096,558.01/4,915.69
  6. Step 6: Final answer
    x = 8,767.15

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.