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Finding the Fourth Proportional to 23,489.60, 35,169.60 and 18,305.60

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Solution

The fourth proportional to 23,489.60, 35,169.60 and 18,305.60 is: 27,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,489.60 : 35,169.60 = 18,305.60 : x
  2. Step 2: Convert to fraction form
    23,489.60/35,169.60 = 18,305.60/x
  3. Step 3: Cross multiply
    23,489.60x = 35,169.60 × 18,305.60
  4. Step 4: Simplify right side
    23,489.60x = 643,800,629.76
  5. Step 5: Solve for x
    x = 643,800,629.76/23,489.60
  6. Step 6: Final answer
    x = 27,407.90

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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.