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Finding the Fourth Proportional to 58,398, 80,589.36 and 33,247.50

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Solution

The fourth proportional to 58,398, 80,589.36 and 33,247.50 is: 45,881.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,398 : 80,589.36 = 33,247.50 : x
  2. Step 2: Convert to fraction form
    58,398/80,589.36 = 33,247.50/x
  3. Step 3: Cross multiply
    58,398x = 80,589.36 × 33,247.50
  4. Step 4: Simplify right side
    58,398x = 2,679,394,746.60
  5. Step 5: Solve for x
    x = 2,679,394,746.60/58,398
  6. Step 6: Final answer
    x = 45,881.62

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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.