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Finding the Third Proportional to 1,868,116.50 and 4,082,332.50

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Solution

The third proportional to 1,868,116.50 and 4,082,332.50 is: 8,920,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,116.50 : 4,082,332.50 = 4,082,332.50 : x
  2. Step 2: Convert to fraction form
    1,868,116.50/4,082,332.50 = 4,082,332.50/x
  3. Step 3: Cross multiply
    1,868,116.50x = 4,082,332.50 × 4,082,332.50
  4. Step 4: Simplify right side
    1,868,116.50x = 16,665,438,640,556.25
  5. Step 5: Solve for x
    x = 16,665,438,640,556.25/1,868,116.50
  6. Step 6: Final answer
    x = 8,920,984.66

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.