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Finding the Fourth Proportional to 43,609.75, 65,424.38 and 15,907.75

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Solution

The fourth proportional to 43,609.75, 65,424.38 and 15,907.75 is: 23,865.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,609.75 : 65,424.38 = 15,907.75 : x
  2. Step 2: Convert to fraction form
    43,609.75/65,424.38 = 15,907.75/x
  3. Step 3: Cross multiply
    43,609.75x = 65,424.38 × 15,907.75
  4. Step 4: Simplify right side
    43,609.75x = 1,040,754,680.95
  5. Step 5: Solve for x
    x = 1,040,754,680.95/43,609.75
  6. Step 6: Final answer
    x = 23,865.18

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1.5x scale

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.