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Finding the Fourth Proportional to 25,305,978.60, 37,962,078.30 and 8,262,023.40

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Solution

The fourth proportional to 25,305,978.60, 37,962,078.30 and 8,262,023.40 is: 12,394,050.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305,978.60 : 37,962,078.30 = 8,262,023.40 : x
  2. Step 2: Convert to fraction form
    25,305,978.60/37,962,078.30 = 8,262,023.40/x
  3. Step 3: Cross multiply
    25,305,978.60x = 37,962,078.30 × 8,262,023.40
  4. Step 4: Simplify right side
    25,305,978.60x = 313,643,579,227,232.19
  5. Step 5: Solve for x
    x = 313,643,579,227,232.19/25,305,978.60
  6. Step 6: Final answer
    x = 12,394,050.60

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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.