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Finding the Fourth Proportional to 18,961.34, 26,150.90 and 14,237.42

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Solution

The fourth proportional to 18,961.34, 26,150.90 and 14,237.42 is: 19,635.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.34 : 26,150.90 = 14,237.42 : x
  2. Step 2: Convert to fraction form
    18,961.34/26,150.90 = 14,237.42/x
  3. Step 3: Cross multiply
    18,961.34x = 26,150.90 × 14,237.42
  4. Step 4: Simplify right side
    18,961.34x = 372,321,447.65
  5. Step 5: Solve for x
    x = 372,321,447.65/18,961.34
  6. Step 6: Final answer
    x = 19,635.82

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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.