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Finding the Fourth Proportional to 18,358.56, 27,500.88 and 8,484.24

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Solution

The fourth proportional to 18,358.56, 27,500.88 and 8,484.24 is: 12,709.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.56 : 27,500.88 = 8,484.24 : x
  2. Step 2: Convert to fraction form
    18,358.56/27,500.88 = 8,484.24/x
  3. Step 3: Cross multiply
    18,358.56x = 27,500.88 × 8,484.24
  4. Step 4: Simplify right side
    18,358.56x = 233,324,066.13
  5. Step 5: Solve for x
    x = 233,324,066.13/18,358.56
  6. Step 6: Final answer
    x = 12,709.28

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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.