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Finding the Fourth Proportional to 20,422,323.23, 28,662,997.05 and 20,422,323.23

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Solution

The fourth proportional to 20,422,323.23, 28,662,997.05 and 20,422,323.23 is: 28,662,997.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422,323.23 : 28,662,997.05 = 20,422,323.23 : x
  2. Step 2: Convert to fraction form
    20,422,323.23/28,662,997.05 = 20,422,323.23/x
  3. Step 3: Cross multiply
    20,422,323.23x = 28,662,997.05 × 20,422,323.23
  4. Step 4: Simplify right side
    20,422,323.23x = 585,364,990,352,321.50
  5. Step 5: Solve for x
    x = 585,364,990,352,321.50/20,422,323.23
  6. Step 6: Final answer
    x = 28,662,997.05

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.