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Finding the Third Proportional to 8,516,728.50 and 12,771,965.25

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Solution

The third proportional to 8,516,728.50 and 12,771,965.25 is: 19,153,257.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516,728.50 : 12,771,965.25 = 12,771,965.25 : x
  2. Step 2: Convert to fraction form
    8,516,728.50/12,771,965.25 = 12,771,965.25/x
  3. Step 3: Cross multiply
    8,516,728.50x = 12,771,965.25 × 12,771,965.25
  4. Step 4: Simplify right side
    8,516,728.50x = 163,123,096,347,207.56
  5. Step 5: Solve for x
    x = 163,123,096,347,207.56/8,516,728.50
  6. Step 6: Final answer
    x = 19,153,257.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.