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Finding the Fourth Proportional to 5,889.81, 8,127.90 and 3,237.21

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Solution

The fourth proportional to 5,889.81, 8,127.90 and 3,237.21 is: 4,467.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,889.81 : 8,127.90 = 3,237.21 : x
  2. Step 2: Convert to fraction form
    5,889.81/8,127.90 = 3,237.21/x
  3. Step 3: Cross multiply
    5,889.81x = 8,127.90 × 3,237.21
  4. Step 4: Simplify right side
    5,889.81x = 26,311,719.16
  5. Step 5: Solve for x
    x = 26,311,719.16/5,889.81
  6. Step 6: Final answer
    x = 4,467.33

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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.