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Finding the Fourth Proportional to 26,313.54, 39,461.50 and 8,539.50

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Solution

The fourth proportional to 26,313.54, 39,461.50 and 8,539.50 is: 12,806.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,313.54 : 39,461.50 = 8,539.50 : x
  2. Step 2: Convert to fraction form
    26,313.54/39,461.50 = 8,539.50/x
  3. Step 3: Cross multiply
    26,313.54x = 39,461.50 × 8,539.50
  4. Step 4: Simplify right side
    26,313.54x = 336,981,479.25
  5. Step 5: Solve for x
    x = 336,981,479.25/26,313.54
  6. Step 6: Final answer
    x = 12,806.39

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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.