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Finding the Third Proportional to 5,911.50 and 12,480

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Solution

The third proportional to 5,911.50 and 12,480 is: 26,347.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.50 : 12,480 = 12,480 : x
  2. Step 2: Convert to fraction form
    5,911.50/12,480 = 12,480/x
  3. Step 3: Cross multiply
    5,911.50x = 12,480 × 12,480
  4. Step 4: Simplify right side
    5,911.50x = 155,750,400
  5. Step 5: Solve for x
    x = 155,750,400/5,911.50
  6. Step 6: Final answer
    x = 26,347.02

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.