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Finding the Fourth Proportional to 67,062.51, 100,609.34 and 19,675.69

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Solution

The fourth proportional to 67,062.51, 100,609.34 and 19,675.69 is: 29,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,062.51 : 100,609.34 = 19,675.69 : x
  2. Step 2: Convert to fraction form
    67,062.51/100,609.34 = 19,675.69/x
  3. Step 3: Cross multiply
    67,062.51x = 100,609.34 × 19,675.69
  4. Step 4: Simplify right side
    67,062.51x = 1,979,558,184.94
  5. Step 5: Solve for x
    x = 1,979,558,184.94/67,062.51
  6. Step 6: Final answer
    x = 29,518.10

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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.