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Finding the Third Proportional to 66,889 and 103,627.50

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Solution

The third proportional to 66,889 and 103,627.50 is: 160,544.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,889 : 103,627.50 = 103,627.50 : x
  2. Step 2: Convert to fraction form
    66,889/103,627.50 = 103,627.50/x
  3. Step 3: Cross multiply
    66,889x = 103,627.50 × 103,627.50
  4. Step 4: Simplify right side
    66,889x = 10,738,658,756.25
  5. Step 5: Solve for x
    x = 10,738,658,756.25/66,889
  6. Step 6: Final answer
    x = 160,544.47

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.