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Finding the Fourth Proportional to 18,804.61, 28,208.30 and 6,324.58

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Solution

The fourth proportional to 18,804.61, 28,208.30 and 6,324.58 is: 9,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.61 : 28,208.30 = 6,324.58 : x
  2. Step 2: Convert to fraction form
    18,804.61/28,208.30 = 6,324.58/x
  3. Step 3: Cross multiply
    18,804.61x = 28,208.30 × 6,324.58
  4. Step 4: Simplify right side
    18,804.61x = 178,405,650.01
  5. Step 5: Solve for x
    x = 178,405,650.01/18,804.61
  6. Step 6: Final answer
    x = 9,487.34

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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.