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Finding the Fourth Proportional to 18,832.64, 25,984.44 and 10,874.84

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Solution

The fourth proportional to 18,832.64, 25,984.44 and 10,874.84 is: 15,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.64 : 25,984.44 = 10,874.84 : x
  2. Step 2: Convert to fraction form
    18,832.64/25,984.44 = 10,874.84/x
  3. Step 3: Cross multiply
    18,832.64x = 25,984.44 × 10,874.84
  4. Step 4: Simplify right side
    18,832.64x = 282,576,627.49
  5. Step 5: Solve for x
    x = 282,576,627.49/18,832.64
  6. Step 6: Final answer
    x = 15,004.62

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1.5x scale

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.