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Finding the Fourth Proportional to 58,783.73, 81,130.71 and 33,291.41

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Solution

The fourth proportional to 58,783.73, 81,130.71 and 33,291.41 is: 45,947.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,783.73 : 81,130.71 = 33,291.41 : x
  2. Step 2: Convert to fraction form
    58,783.73/81,130.71 = 33,291.41/x
  3. Step 3: Cross multiply
    58,783.73x = 81,130.71 × 33,291.41
  4. Step 4: Simplify right side
    58,783.73x = 2,700,955,324.55
  5. Step 5: Solve for x
    x = 2,700,955,324.55/58,783.73
  6. Step 6: Final answer
    x = 45,947.33

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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.