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Finding the Fourth Proportional to 43,203, 59,640.12 and 30,466.56

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Solution

The fourth proportional to 43,203, 59,640.12 and 30,466.56 is: 42,057.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,203 : 59,640.12 = 30,466.56 : x
  2. Step 2: Convert to fraction form
    43,203/59,640.12 = 30,466.56/x
  3. Step 3: Cross multiply
    43,203x = 59,640.12 × 30,466.56
  4. Step 4: Simplify right side
    43,203x = 1,817,029,294.39
  5. Step 5: Solve for x
    x = 1,817,029,294.39/43,203
  6. Step 6: Final answer
    x = 42,057.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.