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Finding the Third Proportional to 12,480 and 14,262

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Solution

The third proportional to 12,480 and 14,262 is: 16,298.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480 : 14,262 = 14,262 : x
  2. Step 2: Convert to fraction form
    12,480/14,262 = 14,262/x
  3. Step 3: Cross multiply
    12,480x = 14,262 × 14,262
  4. Step 4: Simplify right side
    12,480x = 203,404,644
  5. Step 5: Solve for x
    x = 203,404,644/12,480
  6. Step 6: Final answer
    x = 16,298.45

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.