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Finding the Fourth Proportional to 17,347.68, 23,939.86 and 9,390

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Solution

The fourth proportional to 17,347.68, 23,939.86 and 9,390 is: 12,958.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,347.68 : 23,939.86 = 9,390 : x
  2. Step 2: Convert to fraction form
    17,347.68/23,939.86 = 9,390/x
  3. Step 3: Cross multiply
    17,347.68x = 23,939.86 × 9,390
  4. Step 4: Simplify right side
    17,347.68x = 224,795,285.40
  5. Step 5: Solve for x
    x = 224,795,285.40/17,347.68
  6. Step 6: Final answer
    x = 12,958.23

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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.