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Finding the Fourth Proportional to 43,168.92, 64,759.77 and 13,576.92

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Solution

The fourth proportional to 43,168.92, 64,759.77 and 13,576.92 is: 20,367.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,168.92 : 64,759.77 = 13,576.92 : x
  2. Step 2: Convert to fraction form
    43,168.92/64,759.77 = 13,576.92/x
  3. Step 3: Cross multiply
    43,168.92x = 64,759.77 × 13,576.92
  4. Step 4: Simplify right side
    43,168.92x = 879,238,216.51
  5. Step 5: Solve for x
    x = 879,238,216.51/43,168.92
  6. Step 6: Final answer
    x = 20,367.39

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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.