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Finding the Fourth Proportional to 67,062.56, 100,609.41 and 19,675.74

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Solution

The fourth proportional to 67,062.56, 100,609.41 and 19,675.74 is: 29,518.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,062.56 : 100,609.41 = 19,675.74 : x
  2. Step 2: Convert to fraction form
    67,062.56/100,609.41 = 19,675.74/x
  3. Step 3: Cross multiply
    67,062.56x = 100,609.41 × 19,675.74
  4. Step 4: Simplify right side
    67,062.56x = 1,979,564,341.19
  5. Step 5: Solve for x
    x = 1,979,564,341.19/67,062.56
  6. Step 6: Final answer
    x = 29,518.17

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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.