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Finding the Third Proportional to 1,890.84 and 2,927.39

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Solution

The third proportional to 1,890.84 and 2,927.39 is: 4,532.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.84 : 2,927.39 = 2,927.39 : x
  2. Step 2: Convert to fraction form
    1,890.84/2,927.39 = 2,927.39/x
  3. Step 3: Cross multiply
    1,890.84x = 2,927.39 × 2,927.39
  4. Step 4: Simplify right side
    1,890.84x = 8,569,615.87
  5. Step 5: Solve for x
    x = 8,569,615.87/1,890.84
  6. Step 6: Final answer
    x = 4,532.17

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.