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Finding the Third Proportional to 4,631.63 and 6,987.38

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Solution

The third proportional to 4,631.63 and 6,987.38 is: 10,541.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.63 : 6,987.38 = 6,987.38 : x
  2. Step 2: Convert to fraction form
    4,631.63/6,987.38 = 6,987.38/x
  3. Step 3: Cross multiply
    4,631.63x = 6,987.38 × 6,987.38
  4. Step 4: Simplify right side
    4,631.63x = 48,823,409.39
  5. Step 5: Solve for x
    x = 48,823,409.39/4,631.63
  6. Step 6: Final answer
    x = 10,541.31

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.