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Finding the Fourth Proportional to 58,578.93, 80,795.16 and 38,165.49

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Solution

The fourth proportional to 58,578.93, 80,795.16 and 38,165.49 is: 52,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,578.93 : 80,795.16 = 38,165.49 : x
  2. Step 2: Convert to fraction form
    58,578.93/80,795.16 = 38,165.49/x
  3. Step 3: Cross multiply
    58,578.93x = 80,795.16 × 38,165.49
  4. Step 4: Simplify right side
    58,578.93x = 3,083,586,871.03
  5. Step 5: Solve for x
    x = 3,083,586,871.03/58,578.93
  6. Step 6: Final answer
    x = 52,639.86

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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.