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Finding the Fourth Proportional to 83,025, 124,538.58 and 27,621

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Solution

The fourth proportional to 83,025, 124,538.58 and 27,621 is: 41,431.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,025 : 124,538.58 = 27,621 : x
  2. Step 2: Convert to fraction form
    83,025/124,538.58 = 27,621/x
  3. Step 3: Cross multiply
    83,025x = 124,538.58 × 27,621
  4. Step 4: Simplify right side
    83,025x = 3,439,880,118.18
  5. Step 5: Solve for x
    x = 3,439,880,118.18/83,025
  6. Step 6: Final answer
    x = 41,431.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.