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Finding the Third Proportional to 115,856 and 253,000

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Solution

The third proportional to 115,856 and 253,000 is: 552,487.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,856 : 253,000 = 253,000 : x
  2. Step 2: Convert to fraction form
    115,856/253,000 = 253,000/x
  3. Step 3: Cross multiply
    115,856x = 253,000 × 253,000
  4. Step 4: Simplify right side
    115,856x = 64,009,000,000
  5. Step 5: Solve for x
    x = 64,009,000,000/115,856
  6. Step 6: Final answer
    x = 552,487.57

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.