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Finding the Third Proportional to 5,289,306 and 7,856,199

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Solution

The third proportional to 5,289,306 and 7,856,199 is: 11,668,801.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289,306 : 7,856,199 = 7,856,199 : x
  2. Step 2: Convert to fraction form
    5,289,306/7,856,199 = 7,856,199/x
  3. Step 3: Cross multiply
    5,289,306x = 7,856,199 × 7,856,199
  4. Step 4: Simplify right side
    5,289,306x = 61,719,862,727,601
  5. Step 5: Solve for x
    x = 61,719,862,727,601/5,289,306
  6. Step 6: Final answer
    x = 11,668,801.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.