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Finding the Fourth Proportional to 22,015.80, 33,023.70 and 12,174.30

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Solution

The fourth proportional to 22,015.80, 33,023.70 and 12,174.30 is: 18,261.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,015.80 : 33,023.70 = 12,174.30 : x
  2. Step 2: Convert to fraction form
    22,015.80/33,023.70 = 12,174.30/x
  3. Step 3: Cross multiply
    22,015.80x = 33,023.70 × 12,174.30
  4. Step 4: Simplify right side
    22,015.80x = 402,040,430.91
  5. Step 5: Solve for x
    x = 402,040,430.91/22,015.80
  6. Step 6: Final answer
    x = 18,261.45

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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.