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Finding the Fourth Proportional to 22,262.03, 33,405.34 and 12,406.86

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Solution

The fourth proportional to 22,262.03, 33,405.34 and 12,406.86 is: 18,617.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,262.03 : 33,405.34 = 12,406.86 : x
  2. Step 2: Convert to fraction form
    22,262.03/33,405.34 = 12,406.86/x
  3. Step 3: Cross multiply
    22,262.03x = 33,405.34 × 12,406.86
  4. Step 4: Simplify right side
    22,262.03x = 414,455,433.90
  5. Step 5: Solve for x
    x = 414,455,433.90/22,262.03
  6. Step 6: Final answer
    x = 18,617.14

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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.