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Finding the Third Proportional to 7,381.13 and 7,973.44

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Solution

The third proportional to 7,381.13 and 7,973.44 is: 8,613.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.13 : 7,973.44 = 7,973.44 : x
  2. Step 2: Convert to fraction form
    7,381.13/7,973.44 = 7,973.44/x
  3. Step 3: Cross multiply
    7,381.13x = 7,973.44 × 7,973.44
  4. Step 4: Simplify right side
    7,381.13x = 63,575,705.57
  5. Step 5: Solve for x
    x = 63,575,705.57/7,381.13
  6. Step 6: Final answer
    x = 8,613.28

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.