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Finding the Third Proportional to 4,322.50 and 6,881.50

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Solution

The third proportional to 4,322.50 and 6,881.50 is: 10,955.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,322.50 : 6,881.50 = 6,881.50 : x
  2. Step 2: Convert to fraction form
    4,322.50/6,881.50 = 6,881.50/x
  3. Step 3: Cross multiply
    4,322.50x = 6,881.50 × 6,881.50
  4. Step 4: Simplify right side
    4,322.50x = 47,355,042.25
  5. Step 5: Solve for x
    x = 47,355,042.25/4,322.50
  6. Step 6: Final answer
    x = 10,955.48

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.