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Finding the Third Proportional to 2,979.56 and 4,649.06

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Solution

The third proportional to 2,979.56 and 4,649.06 is: 7,254.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.56 : 4,649.06 = 4,649.06 : x
  2. Step 2: Convert to fraction form
    2,979.56/4,649.06 = 4,649.06/x
  3. Step 3: Cross multiply
    2,979.56x = 4,649.06 × 4,649.06
  4. Step 4: Simplify right side
    2,979.56x = 21,613,782.13
  5. Step 5: Solve for x
    x = 21,613,782.13/2,979.56
  6. Step 6: Final answer
    x = 7,254.01

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.