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Finding the Fourth Proportional to 17,907.75, 26,871.48 and 8,673.75

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Solution

The fourth proportional to 17,907.75, 26,871.48 and 8,673.75 is: 13,015.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,907.75 : 26,871.48 = 8,673.75 : x
  2. Step 2: Convert to fraction form
    17,907.75/26,871.48 = 8,673.75/x
  3. Step 3: Cross multiply
    17,907.75x = 26,871.48 × 8,673.75
  4. Step 4: Simplify right side
    17,907.75x = 233,076,499.65
  5. Step 5: Solve for x
    x = 233,076,499.65/17,907.75
  6. Step 6: Final answer
    x = 13,015.40

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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.