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Finding the Third Proportional to 4,890 and 8,023.50

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Solution

The third proportional to 4,890 and 8,023.50 is: 13,164.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890 : 8,023.50 = 8,023.50 : x
  2. Step 2: Convert to fraction form
    4,890/8,023.50 = 8,023.50/x
  3. Step 3: Cross multiply
    4,890x = 8,023.50 × 8,023.50
  4. Step 4: Simplify right side
    4,890x = 64,376,552.25
  5. Step 5: Solve for x
    x = 64,376,552.25/4,890
  6. Step 6: Final answer
    x = 13,164.94

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.