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Finding the Third Proportional to 30,911.50 and 46,374

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Solution

The third proportional to 30,911.50 and 46,374 is: 69,571.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,911.50 : 46,374 = 46,374 : x
  2. Step 2: Convert to fraction form
    30,911.50/46,374 = 46,374/x
  3. Step 3: Cross multiply
    30,911.50x = 46,374 × 46,374
  4. Step 4: Simplify right side
    30,911.50x = 2,150,547,876
  5. Step 5: Solve for x
    x = 2,150,547,876/30,911.50
  6. Step 6: Final answer
    x = 69,571.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.