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Finding the Fourth Proportional to 18,309.60, 27,464.01 and 5,830.48

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Solution

The fourth proportional to 18,309.60, 27,464.01 and 5,830.48 is: 8,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309.60 : 27,464.01 = 5,830.48 : x
  2. Step 2: Convert to fraction form
    18,309.60/27,464.01 = 5,830.48/x
  3. Step 3: Cross multiply
    18,309.60x = 27,464.01 × 5,830.48
  4. Step 4: Simplify right side
    18,309.60x = 160,128,361.02
  5. Step 5: Solve for x
    x = 160,128,361.02/18,309.60
  6. Step 6: Final answer
    x = 8,745.60

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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.