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Finding the Third Proportional to 2,918.53 and 4,356.28

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Solution

The third proportional to 2,918.53 and 4,356.28 is: 6,502.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.53 : 4,356.28 = 4,356.28 : x
  2. Step 2: Convert to fraction form
    2,918.53/4,356.28 = 4,356.28/x
  3. Step 3: Cross multiply
    2,918.53x = 4,356.28 × 4,356.28
  4. Step 4: Simplify right side
    2,918.53x = 18,977,186.33
  5. Step 5: Solve for x
    x = 18,977,186.33/2,918.53
  6. Step 6: Final answer
    x = 6,502.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.