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Finding the Fourth Proportional to 18,744.60, 25,863 and 11,666.01

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Solution

The fourth proportional to 18,744.60, 25,863 and 11,666.01 is: 16,096.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744.60 : 25,863 = 11,666.01 : x
  2. Step 2: Convert to fraction form
    18,744.60/25,863 = 11,666.01/x
  3. Step 3: Cross multiply
    18,744.60x = 25,863 × 11,666.01
  4. Step 4: Simplify right side
    18,744.60x = 301,718,016.63
  5. Step 5: Solve for x
    x = 301,718,016.63/18,744.60
  6. Step 6: Final answer
    x = 16,096.26

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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.