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Finding the Fourth Proportional to 18,504.30, 25,535.88 and 10,006.39

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Solution

The fourth proportional to 18,504.30, 25,535.88 and 10,006.39 is: 13,808.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.30 : 25,535.88 = 10,006.39 : x
  2. Step 2: Convert to fraction form
    18,504.30/25,535.88 = 10,006.39/x
  3. Step 3: Cross multiply
    18,504.30x = 25,535.88 × 10,006.39
  4. Step 4: Simplify right side
    18,504.30x = 255,522,006.19
  5. Step 5: Solve for x
    x = 255,522,006.19/18,504.30
  6. Step 6: Final answer
    x = 13,808.79

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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.