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Finding the Fourth Proportional to 8,661.01, 11,941.42 and 7,226.03

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Solution

The fourth proportional to 8,661.01, 11,941.42 and 7,226.03 is: 9,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.01 : 11,941.42 = 7,226.03 : x
  2. Step 2: Convert to fraction form
    8,661.01/11,941.42 = 7,226.03/x
  3. Step 3: Cross multiply
    8,661.01x = 11,941.42 × 7,226.03
  4. Step 4: Simplify right side
    8,661.01x = 86,289,059.16
  5. Step 5: Solve for x
    x = 86,289,059.16/8,661.01
  6. Step 6: Final answer
    x = 9,962.93

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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.