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Finding the Fourth Proportional to 11,766, 16,237.18 and 6,460.68

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Solution

The fourth proportional to 11,766, 16,237.18 and 6,460.68 is: 8,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,766 : 16,237.18 = 6,460.68 : x
  2. Step 2: Convert to fraction form
    11,766/16,237.18 = 6,460.68/x
  3. Step 3: Cross multiply
    11,766x = 16,237.18 × 6,460.68
  4. Step 4: Simplify right side
    11,766x = 104,903,224.08
  5. Step 5: Solve for x
    x = 104,903,224.08/11,766
  6. Step 6: Final answer
    x = 8,915.79

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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.