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Finding the Fourth Proportional to 22,991.37, 34,469.55 and 11,890.95

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Solution

The fourth proportional to 22,991.37, 34,469.55 and 11,890.95 is: 17,827.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,991.37 : 34,469.55 = 11,890.95 : x
  2. Step 2: Convert to fraction form
    22,991.37/34,469.55 = 11,890.95/x
  3. Step 3: Cross multiply
    22,991.37x = 34,469.55 × 11,890.95
  4. Step 4: Simplify right side
    22,991.37x = 409,875,695.57
  5. Step 5: Solve for x
    x = 409,875,695.57/22,991.37
  6. Step 6: Final answer
    x = 17,827.37

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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.