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Finding the Fourth Proportional to 43,608.76, 65,422.88 and 15,906.76

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Solution

The fourth proportional to 43,608.76, 65,422.88 and 15,906.76 is: 23,863.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,608.76 : 65,422.88 = 15,906.76 : x
  2. Step 2: Convert to fraction form
    43,608.76/65,422.88 = 15,906.76/x
  3. Step 3: Cross multiply
    43,608.76x = 65,422.88 × 15,906.76
  4. Step 4: Simplify right side
    43,608.76x = 1,040,666,050.67
  5. Step 5: Solve for x
    x = 1,040,666,050.67/43,608.76
  6. Step 6: Final answer
    x = 23,863.69

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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.