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Finding the Fourth Proportional to 52,957.83, 73,082.31 and 29,085

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Solution

The fourth proportional to 52,957.83, 73,082.31 and 29,085 is: 40,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,957.83 : 73,082.31 = 29,085 : x
  2. Step 2: Convert to fraction form
    52,957.83/73,082.31 = 29,085/x
  3. Step 3: Cross multiply
    52,957.83x = 73,082.31 × 29,085
  4. Step 4: Simplify right side
    52,957.83x = 2,125,598,986.35
  5. Step 5: Solve for x
    x = 2,125,598,986.35/52,957.83
  6. Step 6: Final answer
    x = 40,137.58

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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.