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Finding the Third Proportional to 12,117.50 and 16,368

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Solution

The third proportional to 12,117.50 and 16,368 is: 22,109.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.50 : 16,368 = 16,368 : x
  2. Step 2: Convert to fraction form
    12,117.50/16,368 = 16,368/x
  3. Step 3: Cross multiply
    12,117.50x = 16,368 × 16,368
  4. Step 4: Simplify right side
    12,117.50x = 267,911,424
  5. Step 5: Solve for x
    x = 267,911,424/12,117.50
  6. Step 6: Final answer
    x = 22,109.46

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.