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Finding the Fourth Proportional to 18,495.64, 27,730.42 and 6,484.83

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Solution

The fourth proportional to 18,495.64, 27,730.42 and 6,484.83 is: 9,722.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,495.64 : 27,730.42 = 6,484.83 : x
  2. Step 2: Convert to fraction form
    18,495.64/27,730.42 = 6,484.83/x
  3. Step 3: Cross multiply
    18,495.64x = 27,730.42 × 6,484.83
  4. Step 4: Simplify right side
    18,495.64x = 179,826,939.33
  5. Step 5: Solve for x
    x = 179,826,939.33/18,495.64
  6. Step 6: Final answer
    x = 9,722.67

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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.