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Finding the Third Proportional to 5,156,700 and 10,928,100

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Solution

The third proportional to 5,156,700 and 10,928,100 is: 23,158,874.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156,700 : 10,928,100 = 10,928,100 : x
  2. Step 2: Convert to fraction form
    5,156,700/10,928,100 = 10,928,100/x
  3. Step 3: Cross multiply
    5,156,700x = 10,928,100 × 10,928,100
  4. Step 4: Simplify right side
    5,156,700x = 119,423,369,610,000
  5. Step 5: Solve for x
    x = 119,423,369,610,000/5,156,700
  6. Step 6: Final answer
    x = 23,158,874.79

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.