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Finding the Fourth Proportional to 26,806.74, 40,169.11 and 14,328.54

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Solution

The fourth proportional to 26,806.74, 40,169.11 and 14,328.54 is: 21,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,806.74 : 40,169.11 = 14,328.54 : x
  2. Step 2: Convert to fraction form
    26,806.74/40,169.11 = 14,328.54/x
  3. Step 3: Cross multiply
    26,806.74x = 40,169.11 × 14,328.54
  4. Step 4: Simplify right side
    26,806.74x = 575,564,627.76
  5. Step 5: Solve for x
    x = 575,564,627.76/26,806.74
  6. Step 6: Final answer
    x = 21,470.89

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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.