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Finding the Fourth Proportional to 58,493.73, 80,721.36 and 33,005.50

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Solution

The fourth proportional to 58,493.73, 80,721.36 and 33,005.50 is: 45,547.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,493.73 : 80,721.36 = 33,005.50 : x
  2. Step 2: Convert to fraction form
    58,493.73/80,721.36 = 33,005.50/x
  3. Step 3: Cross multiply
    58,493.73x = 80,721.36 × 33,005.50
  4. Step 4: Simplify right side
    58,493.73x = 2,664,248,645.68
  5. Step 5: Solve for x
    x = 2,664,248,645.68/58,493.73
  6. Step 6: Final answer
    x = 45,547.59

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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.