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Finding the Fourth Proportional to 58,643.70, 80,939.14 and 33,493.20

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Solution

The fourth proportional to 58,643.70, 80,939.14 and 33,493.20 is: 46,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,643.70 : 80,939.14 = 33,493.20 : x
  2. Step 2: Convert to fraction form
    58,643.70/80,939.14 = 33,493.20/x
  3. Step 3: Cross multiply
    58,643.70x = 80,939.14 × 33,493.20
  4. Step 4: Simplify right side
    58,643.70x = 2,710,910,803.85
  5. Step 5: Solve for x
    x = 2,710,910,803.85/58,643.70
  6. Step 6: Final answer
    x = 46,226.80

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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.