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Finding the Fourth Proportional to 18,601.29, 27,874.58 and 14,661.95

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Solution

The fourth proportional to 18,601.29, 27,874.58 and 14,661.95 is: 21,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.29 : 27,874.58 = 14,661.95 : x
  2. Step 2: Convert to fraction form
    18,601.29/27,874.58 = 14,661.95/x
  3. Step 3: Cross multiply
    18,601.29x = 27,874.58 × 14,661.95
  4. Step 4: Simplify right side
    18,601.29x = 408,695,485.55
  5. Step 5: Solve for x
    x = 408,695,485.55/18,601.29
  6. Step 6: Final answer
    x = 21,971.35

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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.