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Finding the Fourth Proportional to 6,873.36, 9,487.52 and 4,889.67

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Solution

The fourth proportional to 6,873.36, 9,487.52 and 4,889.67 is: 6,749.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,873.36 : 9,487.52 = 4,889.67 : x
  2. Step 2: Convert to fraction form
    6,873.36/9,487.52 = 4,889.67/x
  3. Step 3: Cross multiply
    6,873.36x = 9,487.52 × 4,889.67
  4. Step 4: Simplify right side
    6,873.36x = 46,390,841.92
  5. Step 5: Solve for x
    x = 46,390,841.92/6,873.36
  6. Step 6: Final answer
    x = 6,749.37

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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.