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Finding the Third Proportional to 5,358 and 8,008

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Solution

The third proportional to 5,358 and 8,008 is: 11,968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358 : 8,008 = 8,008 : x
  2. Step 2: Convert to fraction form
    5,358/8,008 = 8,008/x
  3. Step 3: Cross multiply
    5,358x = 8,008 × 8,008
  4. Step 4: Simplify right side
    5,358x = 64,128,064
  5. Step 5: Solve for x
    x = 64,128,064/5,358
  6. Step 6: Final answer
    x = 11,968.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.