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Finding the Fourth Proportional to 11,067.80, 15,533.80 and 11,067.80

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Solution

The fourth proportional to 11,067.80, 15,533.80 and 11,067.80 is: 15,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,067.80 : 15,533.80 = 11,067.80 : x
  2. Step 2: Convert to fraction form
    11,067.80/15,533.80 = 11,067.80/x
  3. Step 3: Cross multiply
    11,067.80x = 15,533.80 × 11,067.80
  4. Step 4: Simplify right side
    11,067.80x = 171,924,991.64
  5. Step 5: Solve for x
    x = 171,924,991.64/11,067.80
  6. Step 6: Final answer
    x = 15,533.80

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1.5x scale

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.