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Finding the Third Proportional to 4,745 and 5,609

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Solution

The third proportional to 4,745 and 5,609 is: 6,630.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745 : 5,609 = 5,609 : x
  2. Step 2: Convert to fraction form
    4,745/5,609 = 5,609/x
  3. Step 3: Cross multiply
    4,745x = 5,609 × 5,609
  4. Step 4: Simplify right side
    4,745x = 31,460,881
  5. Step 5: Solve for x
    x = 31,460,881/4,745
  6. Step 6: Final answer
    x = 6,630.32

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.