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Finding the Fourth Proportional to 43,893.12, 65,852.43 and 15,812.64

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Solution

The fourth proportional to 43,893.12, 65,852.43 and 15,812.64 is: 23,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,893.12 : 65,852.43 = 15,812.64 : x
  2. Step 2: Convert to fraction form
    43,893.12/65,852.43 = 15,812.64/x
  3. Step 3: Cross multiply
    43,893.12x = 65,852.43 × 15,812.64
  4. Step 4: Simplify right side
    43,893.12x = 1,041,300,768.72
  5. Step 5: Solve for x
    x = 1,041,300,768.72/43,893.12
  6. Step 6: Final answer
    x = 23,723.55

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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.