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Finding the Fourth Proportional to 43,175.22, 64,746.42 and 16,876.56

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Solution

The fourth proportional to 43,175.22, 64,746.42 and 16,876.56 is: 25,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,175.22 : 64,746.42 = 16,876.56 : x
  2. Step 2: Convert to fraction form
    43,175.22/64,746.42 = 16,876.56/x
  3. Step 3: Cross multiply
    43,175.22x = 64,746.42 × 16,876.56
  4. Step 4: Simplify right side
    43,175.22x = 1,092,696,841.92
  5. Step 5: Solve for x
    x = 1,092,696,841.92/43,175.22
  6. Step 6: Final answer
    x = 25,308.43

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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.