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Finding the Fourth Proportional to 58,797.82, 81,060.66 and 40,400.37

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Solution

The fourth proportional to 58,797.82, 81,060.66 and 40,400.37 is: 55,697.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,797.82 : 81,060.66 = 40,400.37 : x
  2. Step 2: Convert to fraction form
    58,797.82/81,060.66 = 40,400.37/x
  3. Step 3: Cross multiply
    58,797.82x = 81,060.66 × 40,400.37
  4. Step 4: Simplify right side
    58,797.82x = 3,274,880,656.44
  5. Step 5: Solve for x
    x = 3,274,880,656.44/58,797.82
  6. Step 6: Final answer
    x = 55,697.31

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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.