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Finding the Third Proportional to 1,477.50 and 2,289

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Solution

The third proportional to 1,477.50 and 2,289 is: 3,546.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.50 : 2,289 = 2,289 : x
  2. Step 2: Convert to fraction form
    1,477.50/2,289 = 2,289/x
  3. Step 3: Cross multiply
    1,477.50x = 2,289 × 2,289
  4. Step 4: Simplify right side
    1,477.50x = 5,239,521
  5. Step 5: Solve for x
    x = 5,239,521/1,477.50
  6. Step 6: Final answer
    x = 3,546.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.