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Finding the Third Proportional to 1,929 and 2,914.69

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Solution

The third proportional to 1,929 and 2,914.69 is: 4,404.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929 : 2,914.69 = 2,914.69 : x
  2. Step 2: Convert to fraction form
    1,929/2,914.69 = 2,914.69/x
  3. Step 3: Cross multiply
    1,929x = 2,914.69 × 2,914.69
  4. Step 4: Simplify right side
    1,929x = 8,495,403.22
  5. Step 5: Solve for x
    x = 8,495,403.22/1,929
  6. Step 6: Final answer
    x = 4,404.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.