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Finding the Fourth Proportional to 16,804,971.20, 25,207,456.80 and 16,645,538.90

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Solution

The fourth proportional to 16,804,971.20, 25,207,456.80 and 16,645,538.90 is: 24,968,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,804,971.20 : 25,207,456.80 = 16,645,538.90 : x
  2. Step 2: Convert to fraction form
    16,804,971.20/25,207,456.80 = 16,645,538.90/x
  3. Step 3: Cross multiply
    16,804,971.20x = 25,207,456.80 × 16,645,538.90
  4. Step 4: Simplify right side
    16,804,971.20x = 419,591,702,734,469.56
  5. Step 5: Solve for x
    x = 419,591,702,734,469.56/16,804,971.20
  6. Step 6: Final answer
    x = 24,968,308.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.