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Finding the Fourth Proportional to 11,004.93, 15,189.91 and 9,020.22

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Solution

The fourth proportional to 11,004.93, 15,189.91 and 9,020.22 is: 12,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,004.93 : 15,189.91 = 9,020.22 : x
  2. Step 2: Convert to fraction form
    11,004.93/15,189.91 = 9,020.22/x
  3. Step 3: Cross multiply
    11,004.93x = 15,189.91 × 9,020.22
  4. Step 4: Simplify right side
    11,004.93x = 137,016,329.98
  5. Step 5: Solve for x
    x = 137,016,329.98/11,004.93
  6. Step 6: Final answer
    x = 12,450.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.