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Finding the Fourth Proportional to 16,938.59, 23,375.26 and 9,486.59

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Solution

The fourth proportional to 16,938.59, 23,375.26 and 9,486.59 is: 13,091.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,938.59 : 23,375.26 = 9,486.59 : x
  2. Step 2: Convert to fraction form
    16,938.59/23,375.26 = 9,486.59/x
  3. Step 3: Cross multiply
    16,938.59x = 23,375.26 × 9,486.59
  4. Step 4: Simplify right side
    16,938.59x = 221,751,507.76
  5. Step 5: Solve for x
    x = 221,751,507.76/16,938.59
  6. Step 6: Final answer
    x = 13,091.50

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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.