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Finding the Third Proportional to 4,430.95 and 6,857.16

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Solution

The third proportional to 4,430.95 and 6,857.16 is: 10,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.95 : 6,857.16 = 6,857.16 : x
  2. Step 2: Convert to fraction form
    4,430.95/6,857.16 = 6,857.16/x
  3. Step 3: Cross multiply
    4,430.95x = 6,857.16 × 6,857.16
  4. Step 4: Simplify right side
    4,430.95x = 47,020,591.84
  5. Step 5: Solve for x
    x = 47,020,591.84/4,430.95
  6. Step 6: Final answer
    x = 10,611.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.