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Finding the Third Proportional to 15,130 and 16,750

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Solution

The third proportional to 15,130 and 16,750 is: 18,543.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,130 : 16,750 = 16,750 : x
  2. Step 2: Convert to fraction form
    15,130/16,750 = 16,750/x
  3. Step 3: Cross multiply
    15,130x = 16,750 × 16,750
  4. Step 4: Simplify right side
    15,130x = 280,562,500
  5. Step 5: Solve for x
    x = 280,562,500/15,130
  6. Step 6: Final answer
    x = 18,543.46

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.