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Finding the Fourth Proportional to 17,991,578.25, 26,987,345.91 and 5,861,022.30

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Solution

The fourth proportional to 17,991,578.25, 26,987,345.91 and 5,861,022.30 is: 8,791,526.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991,578.25 : 26,987,345.91 = 5,861,022.30 : x
  2. Step 2: Convert to fraction form
    17,991,578.25/26,987,345.91 = 5,861,022.30/x
  3. Step 3: Cross multiply
    17,991,578.25x = 26,987,345.91 × 5,861,022.30
  4. Step 4: Simplify right side
    17,991,578.25x = 158,173,436,196,323.78
  5. Step 5: Solve for x
    x = 158,173,436,196,323.78/17,991,578.25
  6. Step 6: Final answer
    x = 8,791,526.46

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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.