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Finding the Third Proportional to 1,476.50 and 2,620

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Solution

The third proportional to 1,476.50 and 2,620 is: 4,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.50 : 2,620 = 2,620 : x
  2. Step 2: Convert to fraction form
    1,476.50/2,620 = 2,620/x
  3. Step 3: Cross multiply
    1,476.50x = 2,620 × 2,620
  4. Step 4: Simplify right side
    1,476.50x = 6,864,400
  5. Step 5: Solve for x
    x = 6,864,400/1,476.50
  6. Step 6: Final answer
    x = 4,649.10

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.