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Finding the Third Proportional to 251,518.50 and 380,529

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Solution

The third proportional to 251,518.50 and 380,529 is: 575,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,518.50 : 380,529 = 380,529 : x
  2. Step 2: Convert to fraction form
    251,518.50/380,529 = 380,529/x
  3. Step 3: Cross multiply
    251,518.50x = 380,529 × 380,529
  4. Step 4: Simplify right side
    251,518.50x = 144,802,319,841
  5. Step 5: Solve for x
    x = 144,802,319,841/251,518.50
  6. Step 6: Final answer
    x = 575,712.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.