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Finding the Third Proportional to 12,316 and 13,276

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Solution

The third proportional to 12,316 and 13,276 is: 14,310.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316 : 13,276 = 13,276 : x
  2. Step 2: Convert to fraction form
    12,316/13,276 = 13,276/x
  3. Step 3: Cross multiply
    12,316x = 13,276 × 13,276
  4. Step 4: Simplify right side
    12,316x = 176,252,176
  5. Step 5: Solve for x
    x = 176,252,176/12,316
  6. Step 6: Final answer
    x = 14,310.83

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.