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Finding the Fourth Proportional to 43,706.60, 65,559.90 and 16,015.40

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Solution

The fourth proportional to 43,706.60, 65,559.90 and 16,015.40 is: 24,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,706.60 : 65,559.90 = 16,015.40 : x
  2. Step 2: Convert to fraction form
    43,706.60/65,559.90 = 16,015.40/x
  3. Step 3: Cross multiply
    43,706.60x = 65,559.90 × 16,015.40
  4. Step 4: Simplify right side
    43,706.60x = 1,049,968,022.46
  5. Step 5: Solve for x
    x = 1,049,968,022.46/43,706.60
  6. Step 6: Final answer
    x = 24,023.10

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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.