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Finding the Third Proportional to 897.75 and 2,116.88

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Solution

The third proportional to 897.75 and 2,116.88 is: 4,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    897.75 : 2,116.88 = 2,116.88 : x
  2. Step 2: Convert to fraction form
    897.75/2,116.88 = 2,116.88/x
  3. Step 3: Cross multiply
    897.75x = 2,116.88 × 2,116.88
  4. Step 4: Simplify right side
    897.75x = 4,481,159.77
  5. Step 5: Solve for x
    x = 4,481,159.77/897.75
  6. Step 6: Final answer
    x = 4,991.55

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.