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Finding the Fourth Proportional to 12,365.99, 18,555.08 and 5,791.04

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Solution

The fourth proportional to 12,365.99, 18,555.08 and 5,791.04 is: 8,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.99 : 18,555.08 = 5,791.04 : x
  2. Step 2: Convert to fraction form
    12,365.99/18,555.08 = 5,791.04/x
  3. Step 3: Cross multiply
    12,365.99x = 18,555.08 × 5,791.04
  4. Step 4: Simplify right side
    12,365.99x = 107,453,181.53
  5. Step 5: Solve for x
    x = 107,453,181.53/12,365.99
  6. Step 6: Final answer
    x = 8,689.41

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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.