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Finding the Fourth Proportional to 19,319,231.60, 28,978,847.40 and 14,500,833.20

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Solution

The fourth proportional to 19,319,231.60, 28,978,847.40 and 14,500,833.20 is: 21,751,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319,231.60 : 28,978,847.40 = 14,500,833.20 : x
  2. Step 2: Convert to fraction form
    19,319,231.60/28,978,847.40 = 14,500,833.20/x
  3. Step 3: Cross multiply
    19,319,231.60x = 28,978,847.40 × 14,500,833.20
  4. Step 4: Simplify right side
    19,319,231.60x = 420,217,432,475,653.62
  5. Step 5: Solve for x
    x = 420,217,432,475,653.62/19,319,231.60
  6. Step 6: Final answer
    x = 21,751,249.80

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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.