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Finding the Fourth Proportional to 26,470,400.80, 39,621,620.40 and 26,470,400.80

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Solution

The fourth proportional to 26,470,400.80, 39,621,620.40 and 26,470,400.80 is: 39,621,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,470,400.80 : 39,621,620.40 = 26,470,400.80 : x
  2. Step 2: Convert to fraction form
    26,470,400.80/39,621,620.40 = 26,470,400.80/x
  3. Step 3: Cross multiply
    26,470,400.80x = 39,621,620.40 × 26,470,400.80
  4. Step 4: Simplify right side
    26,470,400.80x = 1,048,800,172,333,456.25
  5. Step 5: Solve for x
    x = 1,048,800,172,333,456.25/26,470,400.80
  6. Step 6: Final answer
    x = 39,621,620.40

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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.