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Finding the Fourth Proportional to 9,996.78, 15,005.46 and 7,367.22

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Solution

The fourth proportional to 9,996.78, 15,005.46 and 7,367.22 is: 11,058.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,996.78 : 15,005.46 = 7,367.22 : x
  2. Step 2: Convert to fraction form
    9,996.78/15,005.46 = 7,367.22/x
  3. Step 3: Cross multiply
    9,996.78x = 15,005.46 × 7,367.22
  4. Step 4: Simplify right side
    9,996.78x = 110,548,525.02
  5. Step 5: Solve for x
    x = 110,548,525.02/9,996.78
  6. Step 6: Final answer
    x = 11,058.41

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1.5x scale

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.