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Finding the Third Proportional to 7,340.63 and 11,079.28

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Solution

The third proportional to 7,340.63 and 11,079.28 is: 16,722.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.63 : 11,079.28 = 11,079.28 : x
  2. Step 2: Convert to fraction form
    7,340.63/11,079.28 = 11,079.28/x
  3. Step 3: Cross multiply
    7,340.63x = 11,079.28 × 11,079.28
  4. Step 4: Simplify right side
    7,340.63x = 122,750,473.02
  5. Step 5: Solve for x
    x = 122,750,473.02/7,340.63
  6. Step 6: Final answer
    x = 16,722.07

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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.