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Finding the Fourth Proportional to 14,954.61, 20,644.86 and 11,589.87

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Solution

The fourth proportional to 14,954.61, 20,644.86 and 11,589.87 is: 15,999.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,954.61 : 20,644.86 = 11,589.87 : x
  2. Step 2: Convert to fraction form
    14,954.61/20,644.86 = 11,589.87/x
  3. Step 3: Cross multiply
    14,954.61x = 20,644.86 × 11,589.87
  4. Step 4: Simplify right side
    14,954.61x = 239,271,243.57
  5. Step 5: Solve for x
    x = 239,271,243.57/14,954.61
  6. Step 6: Final answer
    x = 15,999.83

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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.