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Finding the Fourth Proportional to 58,865.54, 81,264.49 and 39,845.82

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Solution

The fourth proportional to 58,865.54, 81,264.49 and 39,845.82 is: 55,007.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,865.54 : 81,264.49 = 39,845.82 : x
  2. Step 2: Convert to fraction form
    58,865.54/81,264.49 = 39,845.82/x
  3. Step 3: Cross multiply
    58,865.54x = 81,264.49 × 39,845.82
  4. Step 4: Simplify right side
    58,865.54x = 3,238,050,446.06
  5. Step 5: Solve for x
    x = 3,238,050,446.06/58,865.54
  6. Step 6: Final answer
    x = 55,007.58

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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.