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Finding the Fourth Proportional to 26,698,943.20, 40,048,414.80 and 13,262,015.20

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Solution

The fourth proportional to 26,698,943.20, 40,048,414.80 and 13,262,015.20 is: 19,893,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,698,943.20 : 40,048,414.80 = 13,262,015.20 : x
  2. Step 2: Convert to fraction form
    26,698,943.20/40,048,414.80 = 13,262,015.20/x
  3. Step 3: Cross multiply
    26,698,943.20x = 40,048,414.80 × 13,262,015.20
  4. Step 4: Simplify right side
    26,698,943.20x = 531,122,685,813,504.88
  5. Step 5: Solve for x
    x = 531,122,685,813,504.88/26,698,943.20
  6. Step 6: Final answer
    x = 19,893,022.80

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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.