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Finding the Third Proportional to 4,774 and 7,553

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Solution

The third proportional to 4,774 and 7,553 is: 11,949.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774 : 7,553 = 7,553 : x
  2. Step 2: Convert to fraction form
    4,774/7,553 = 7,553/x
  3. Step 3: Cross multiply
    4,774x = 7,553 × 7,553
  4. Step 4: Simplify right side
    4,774x = 57,047,809
  5. Step 5: Solve for x
    x = 57,047,809/4,774
  6. Step 6: Final answer
    x = 11,949.69

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.