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Finding the Third Proportional to 1,939 and 4,528

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Solution

The third proportional to 1,939 and 4,528 is: 10,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939 : 4,528 = 4,528 : x
  2. Step 2: Convert to fraction form
    1,939/4,528 = 4,528/x
  3. Step 3: Cross multiply
    1,939x = 4,528 × 4,528
  4. Step 4: Simplify right side
    1,939x = 20,502,784
  5. Step 5: Solve for x
    x = 20,502,784/1,939
  6. Step 6: Final answer
    x = 10,573.90

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.