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Finding the Fourth Proportional to 17,469,011.90, 26,197,297.05 and 7,888,979.90

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Solution

The fourth proportional to 17,469,011.90, 26,197,297.05 and 7,888,979.90 is: 11,830,660.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,469,011.90 : 26,197,297.05 = 7,888,979.90 : x
  2. Step 2: Convert to fraction form
    17,469,011.90/26,197,297.05 = 7,888,979.90/x
  3. Step 3: Cross multiply
    17,469,011.90x = 26,197,297.05 × 7,888,979.90
  4. Step 4: Simplify right side
    17,469,011.90x = 206,669,949,861,779.31
  5. Step 5: Solve for x
    x = 206,669,949,861,779.31/17,469,011.90
  6. Step 6: Final answer
    x = 11,830,660.55

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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.