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Finding the Third Proportional to 1,878.19 and 4,353.75

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Solution

The third proportional to 1,878.19 and 4,353.75 is: 10,092.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.19 : 4,353.75 = 4,353.75 : x
  2. Step 2: Convert to fraction form
    1,878.19/4,353.75 = 4,353.75/x
  3. Step 3: Cross multiply
    1,878.19x = 4,353.75 × 4,353.75
  4. Step 4: Simplify right side
    1,878.19x = 18,955,139.06
  5. Step 5: Solve for x
    x = 18,955,139.06/1,878.19
  6. Step 6: Final answer
    x = 10,092.25

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.