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Finding the Third Proportional to 1,929 and 4,539.50

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Solution

The third proportional to 1,929 and 4,539.50 is: 10,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929 : 4,539.50 = 4,539.50 : x
  2. Step 2: Convert to fraction form
    1,929/4,539.50 = 4,539.50/x
  3. Step 3: Cross multiply
    1,929x = 4,539.50 × 4,539.50
  4. Step 4: Simplify right side
    1,929x = 20,607,060.25
  5. Step 5: Solve for x
    x = 20,607,060.25/1,929
  6. Step 6: Final answer
    x = 10,682.77

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.