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Finding the Third Proportional to 30,928 and 46,678

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Solution

The third proportional to 30,928 and 46,678 is: 70,448.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,928 : 46,678 = 46,678 : x
  2. Step 2: Convert to fraction form
    30,928/46,678 = 46,678/x
  3. Step 3: Cross multiply
    30,928x = 46,678 × 46,678
  4. Step 4: Simplify right side
    30,928x = 2,178,835,684
  5. Step 5: Solve for x
    x = 2,178,835,684/30,928
  6. Step 6: Final answer
    x = 70,448.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.