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Finding the Fourth Proportional to 58,920.98, 81,274.26 and 35,940.31

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Solution

The fourth proportional to 58,920.98, 81,274.26 and 35,940.31 is: 49,575.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,920.98 : 81,274.26 = 35,940.31 : x
  2. Step 2: Convert to fraction form
    58,920.98/81,274.26 = 35,940.31/x
  3. Step 3: Cross multiply
    58,920.98x = 81,274.26 × 35,940.31
  4. Step 4: Simplify right side
    58,920.98x = 2,921,022,258.81
  5. Step 5: Solve for x
    x = 2,921,022,258.81/58,920.98
  6. Step 6: Final answer
    x = 49,575.25

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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.