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Finding the Third Proportional to 4,688 and 7,293

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Solution

The third proportional to 4,688 and 7,293 is: 11,345.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688 : 7,293 = 7,293 : x
  2. Step 2: Convert to fraction form
    4,688/7,293 = 7,293/x
  3. Step 3: Cross multiply
    4,688x = 7,293 × 7,293
  4. Step 4: Simplify right side
    4,688x = 53,187,849
  5. Step 5: Solve for x
    x = 53,187,849/4,688
  6. Step 6: Final answer
    x = 11,345.53

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.