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Finding the Fourth Proportional to 43,609.76, 65,424.38 and 15,907.76

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Solution

The fourth proportional to 43,609.76, 65,424.38 and 15,907.76 is: 23,865.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,609.76 : 65,424.38 = 15,907.76 : x
  2. Step 2: Convert to fraction form
    43,609.76/65,424.38 = 15,907.76/x
  3. Step 3: Cross multiply
    43,609.76x = 65,424.38 × 15,907.76
  4. Step 4: Simplify right side
    43,609.76x = 1,040,755,335.19
  5. Step 5: Solve for x
    x = 1,040,755,335.19/43,609.76
  6. Step 6: Final answer
    x = 23,865.19

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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.