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Finding the Fourth Proportional to 25,889.23, 38,829.39 and 8,359.21

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Solution

The fourth proportional to 25,889.23, 38,829.39 and 8,359.21 is: 12,537.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,889.23 : 38,829.39 = 8,359.21 : x
  2. Step 2: Convert to fraction form
    25,889.23/38,829.39 = 8,359.21/x
  3. Step 3: Cross multiply
    25,889.23x = 38,829.39 × 8,359.21
  4. Step 4: Simplify right side
    25,889.23x = 324,583,025.18
  5. Step 5: Solve for x
    x = 324,583,025.18/25,889.23
  6. Step 6: Final answer
    x = 12,537.38

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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.