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Finding the Third Proportional to 3,420.56 and 4,622.06

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Solution

The third proportional to 3,420.56 and 4,622.06 is: 6,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.56 : 4,622.06 = 4,622.06 : x
  2. Step 2: Convert to fraction form
    3,420.56/4,622.06 = 4,622.06/x
  3. Step 3: Cross multiply
    3,420.56x = 4,622.06 × 4,622.06
  4. Step 4: Simplify right side
    3,420.56x = 21,363,461.75
  5. Step 5: Solve for x
    x = 21,363,461.75/3,420.56
  6. Step 6: Final answer
    x = 6,245.60

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.