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Finding the Fourth Proportional to 16,774,811.20, 25,180,879.20 and 10,392,270.40

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Solution

The fourth proportional to 16,774,811.20, 25,180,879.20 and 10,392,270.40 is: 15,599,967.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,774,811.20 : 25,180,879.20 = 10,392,270.40 : x
  2. Step 2: Convert to fraction form
    16,774,811.20/25,180,879.20 = 10,392,270.40/x
  3. Step 3: Cross multiply
    16,774,811.20x = 25,180,879.20 × 10,392,270.40
  4. Step 4: Simplify right side
    16,774,811.20x = 261,686,505,556,135.69
  5. Step 5: Solve for x
    x = 261,686,505,556,135.69/16,774,811.20
  6. Step 6: Final answer
    x = 15,599,967.26

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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.