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Finding the Fourth Proportional to 58,405.80, 80,600.04 and 33,255.28

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Solution

The fourth proportional to 58,405.80, 80,600.04 and 33,255.28 is: 45,892.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,405.80 : 80,600.04 = 33,255.28 : x
  2. Step 2: Convert to fraction form
    58,405.80/80,600.04 = 33,255.28/x
  3. Step 3: Cross multiply
    58,405.80x = 80,600.04 × 33,255.28
  4. Step 4: Simplify right side
    58,405.80x = 2,680,376,898.21
  5. Step 5: Solve for x
    x = 2,680,376,898.21/58,405.80
  6. Step 6: Final answer
    x = 45,892.31

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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.