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Finding the Fourth Proportional to 67,051.79, 100,596.51 and 19,668

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Solution

The fourth proportional to 67,051.79, 100,596.51 and 19,668 is: 29,507.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,051.79 : 100,596.51 = 19,668 : x
  2. Step 2: Convert to fraction form
    67,051.79/100,596.51 = 19,668/x
  3. Step 3: Cross multiply
    67,051.79x = 100,596.51 × 19,668
  4. Step 4: Simplify right side
    67,051.79x = 1,978,532,158.68
  5. Step 5: Solve for x
    x = 1,978,532,158.68/67,051.79
  6. Step 6: Final answer
    x = 29,507.52

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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.