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Finding the Fourth Proportional to 65,995.38, 91,049.67 and 43,346.61

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Solution

The fourth proportional to 65,995.38, 91,049.67 and 43,346.61 is: 59,802.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,995.38 : 91,049.67 = 43,346.61 : x
  2. Step 2: Convert to fraction form
    65,995.38/91,049.67 = 43,346.61/x
  3. Step 3: Cross multiply
    65,995.38x = 91,049.67 × 43,346.61
  4. Step 4: Simplify right side
    65,995.38x = 3,946,694,536.12
  5. Step 5: Solve for x
    x = 3,946,694,536.12/65,995.38
  6. Step 6: Final answer
    x = 59,802.59

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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.