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Finding the Fourth Proportional to 58,813, 81,162.05 and 31,955.54

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Solution

The fourth proportional to 58,813, 81,162.05 and 31,955.54 is: 44,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,813 : 81,162.05 = 31,955.54 : x
  2. Step 2: Convert to fraction form
    58,813/81,162.05 = 31,955.54/x
  3. Step 3: Cross multiply
    58,813x = 81,162.05 × 31,955.54
  4. Step 4: Simplify right side
    58,813x = 2,593,577,135.26
  5. Step 5: Solve for x
    x = 2,593,577,135.26/58,813
  6. Step 6: Final answer
    x = 44,098.70

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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.