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Finding the Fourth Proportional to 22,148,978.40, 33,229,688.40 and 10,789,797.60

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Solution

The fourth proportional to 22,148,978.40, 33,229,688.40 and 10,789,797.60 is: 16,187,726.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,148,978.40 : 33,229,688.40 = 10,789,797.60 : x
  2. Step 2: Convert to fraction form
    22,148,978.40/33,229,688.40 = 10,789,797.60/x
  3. Step 3: Cross multiply
    22,148,978.40x = 33,229,688.40 × 10,789,797.60
  4. Step 4: Simplify right side
    22,148,978.40x = 358,541,612,147,067.81
  5. Step 5: Solve for x
    x = 358,541,612,147,067.81/22,148,978.40
  6. Step 6: Final answer
    x = 16,187,726.84

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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.