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Finding the Fourth Proportional to 11,074,986.90, 15,467,190.30 and 11,074,986.90

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Solution

The fourth proportional to 11,074,986.90, 15,467,190.30 and 11,074,986.90 is: 15,467,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,074,986.90 : 15,467,190.30 = 11,074,986.90 : x
  2. Step 2: Convert to fraction form
    11,074,986.90/15,467,190.30 = 11,074,986.90/x
  3. Step 3: Cross multiply
    11,074,986.90x = 15,467,190.30 × 11,074,986.90
  4. Step 4: Simplify right side
    11,074,986.90x = 171,298,929,952,307.09
  5. Step 5: Solve for x
    x = 171,298,929,952,307.09/11,074,986.90
  6. Step 6: Final answer
    x = 15,467,190.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.