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Finding the Third Proportional to 51,445.50 and 75,783

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Solution

The third proportional to 51,445.50 and 75,783 is: 111,633.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,445.50 : 75,783 = 75,783 : x
  2. Step 2: Convert to fraction form
    51,445.50/75,783 = 75,783/x
  3. Step 3: Cross multiply
    51,445.50x = 75,783 × 75,783
  4. Step 4: Simplify right side
    51,445.50x = 5,743,063,089
  5. Step 5: Solve for x
    x = 5,743,063,089/51,445.50
  6. Step 6: Final answer
    x = 111,633.93

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.