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Finding the Third Proportional to 899 and 2,428

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Solution

The third proportional to 899 and 2,428 is: 6,557.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    899 : 2,428 = 2,428 : x
  2. Step 2: Convert to fraction form
    899/2,428 = 2,428/x
  3. Step 3: Cross multiply
    899x = 2,428 × 2,428
  4. Step 4: Simplify right side
    899x = 5,895,184
  5. Step 5: Solve for x
    x = 5,895,184/899
  6. Step 6: Final answer
    x = 6,557.49

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.