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Finding the Fourth Proportional to 28,082, 38,753.16 and 16,906.16

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Solution

The fourth proportional to 28,082, 38,753.16 and 16,906.16 is: 23,330.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082 : 38,753.16 = 16,906.16 : x
  2. Step 2: Convert to fraction form
    28,082/38,753.16 = 16,906.16/x
  3. Step 3: Cross multiply
    28,082x = 38,753.16 × 16,906.16
  4. Step 4: Simplify right side
    28,082x = 655,167,123.47
  5. Step 5: Solve for x
    x = 655,167,123.47/28,082
  6. Step 6: Final answer
    x = 23,330.50

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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.