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Finding the Third Proportional to 1,473 and 3,979.50

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Solution

The third proportional to 1,473 and 3,979.50 is: 10,751.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473 : 3,979.50 = 3,979.50 : x
  2. Step 2: Convert to fraction form
    1,473/3,979.50 = 3,979.50/x
  3. Step 3: Cross multiply
    1,473x = 3,979.50 × 3,979.50
  4. Step 4: Simplify right side
    1,473x = 15,836,420.25
  5. Step 5: Solve for x
    x = 15,836,420.25/1,473
  6. Step 6: Final answer
    x = 10,751.13

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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.