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Finding the Fourth Proportional to 58,770, 81,102.60 and 33,619.50

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Solution

The fourth proportional to 58,770, 81,102.60 and 33,619.50 is: 46,394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,770 : 81,102.60 = 33,619.50 : x
  2. Step 2: Convert to fraction form
    58,770/81,102.60 = 33,619.50/x
  3. Step 3: Cross multiply
    58,770x = 81,102.60 × 33,619.50
  4. Step 4: Simplify right side
    58,770x = 2,726,628,860.70
  5. Step 5: Solve for x
    x = 2,726,628,860.70/58,770
  6. Step 6: Final answer
    x = 46,394.91

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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.