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Finding the Fourth Proportional to 18,504.63, 27,707.81 and 14,461.79

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Solution

The fourth proportional to 18,504.63, 27,707.81 and 14,461.79 is: 21,654.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.63 : 27,707.81 = 14,461.79 : x
  2. Step 2: Convert to fraction form
    18,504.63/27,707.81 = 14,461.79/x
  3. Step 3: Cross multiply
    18,504.63x = 27,707.81 × 14,461.79
  4. Step 4: Simplify right side
    18,504.63x = 400,704,318.73
  5. Step 5: Solve for x
    x = 400,704,318.73/18,504.63
  6. Step 6: Final answer
    x = 21,654.27

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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.