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Finding the Third Proportional to 63,672.75 and 139,590

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Solution

The third proportional to 63,672.75 and 139,590 is: 306,023.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,672.75 : 139,590 = 139,590 : x
  2. Step 2: Convert to fraction form
    63,672.75/139,590 = 139,590/x
  3. Step 3: Cross multiply
    63,672.75x = 139,590 × 139,590
  4. Step 4: Simplify right side
    63,672.75x = 19,485,368,100
  5. Step 5: Solve for x
    x = 19,485,368,100/63,672.75
  6. Step 6: Final answer
    x = 306,023.66

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.