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Finding the Third Proportional to 1,897.50 and 4,119

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Solution

The third proportional to 1,897.50 and 4,119 is: 8,941.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.50 : 4,119 = 4,119 : x
  2. Step 2: Convert to fraction form
    1,897.50/4,119 = 4,119/x
  3. Step 3: Cross multiply
    1,897.50x = 4,119 × 4,119
  4. Step 4: Simplify right side
    1,897.50x = 16,966,161
  5. Step 5: Solve for x
    x = 16,966,161/1,897.50
  6. Step 6: Final answer
    x = 8,941.32

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.