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Finding the Fourth Proportional to 43,367.52, 65,070.96 and 42,668.64

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Solution

The fourth proportional to 43,367.52, 65,070.96 and 42,668.64 is: 64,022.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,367.52 : 65,070.96 = 42,668.64 : x
  2. Step 2: Convert to fraction form
    43,367.52/65,070.96 = 42,668.64/x
  3. Step 3: Cross multiply
    43,367.52x = 65,070.96 × 42,668.64
  4. Step 4: Simplify right side
    43,367.52x = 2,776,489,366.69
  5. Step 5: Solve for x
    x = 2,776,489,366.69/43,367.52
  6. Step 6: Final answer
    x = 64,022.32

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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.