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Finding the Third Proportional to 3,619,943.75 and 5,319,107.50

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Solution

The third proportional to 3,619,943.75 and 5,319,107.50 is: 7,815,840.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619,943.75 : 5,319,107.50 = 5,319,107.50 : x
  2. Step 2: Convert to fraction form
    3,619,943.75/5,319,107.50 = 5,319,107.50/x
  3. Step 3: Cross multiply
    3,619,943.75x = 5,319,107.50 × 5,319,107.50
  4. Step 4: Simplify right side
    3,619,943.75x = 28,292,904,596,556.25
  5. Step 5: Solve for x
    x = 28,292,904,596,556.25/3,619,943.75
  6. Step 6: Final answer
    x = 7,815,840.95

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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.