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Finding the Third Proportional to 5,480 and 8,653

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Solution

The third proportional to 5,480 and 8,653 is: 13,663.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480 : 8,653 = 8,653 : x
  2. Step 2: Convert to fraction form
    5,480/8,653 = 8,653/x
  3. Step 3: Cross multiply
    5,480x = 8,653 × 8,653
  4. Step 4: Simplify right side
    5,480x = 74,874,409
  5. Step 5: Solve for x
    x = 74,874,409/5,480
  6. Step 6: Final answer
    x = 13,663.21

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.