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Finding the Fourth Proportional to 43,609.70, 65,414.55 and 15,904.10

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Solution

The fourth proportional to 43,609.70, 65,414.55 and 15,904.10 is: 23,856.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,609.70 : 65,414.55 = 15,904.10 : x
  2. Step 2: Convert to fraction form
    43,609.70/65,414.55 = 15,904.10/x
  3. Step 3: Cross multiply
    43,609.70x = 65,414.55 × 15,904.10
  4. Step 4: Simplify right side
    43,609.70x = 1,040,359,544.66
  5. Step 5: Solve for x
    x = 1,040,359,544.66/43,609.70
  6. Step 6: Final answer
    x = 23,856.15

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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.