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Finding the Third Proportional to 17,391 and 28,000.50

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Solution

The third proportional to 17,391 and 28,000.50 is: 45,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,391 : 28,000.50 = 28,000.50 : x
  2. Step 2: Convert to fraction form
    17,391/28,000.50 = 28,000.50/x
  3. Step 3: Cross multiply
    17,391x = 28,000.50 × 28,000.50
  4. Step 4: Simplify right side
    17,391x = 784,028,000.25
  5. Step 5: Solve for x
    x = 784,028,000.25/17,391
  6. Step 6: Final answer
    x = 45,082.40

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.