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Finding the Third Proportional to 5,258,713.50 and 8,220,217.50

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Solution

The third proportional to 5,258,713.50 and 8,220,217.50 is: 12,849,525.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258,713.50 : 8,220,217.50 = 8,220,217.50 : x
  2. Step 2: Convert to fraction form
    5,258,713.50/8,220,217.50 = 8,220,217.50/x
  3. Step 3: Cross multiply
    5,258,713.50x = 8,220,217.50 × 8,220,217.50
  4. Step 4: Simplify right side
    5,258,713.50x = 67,571,975,747,306.25
  5. Step 5: Solve for x
    x = 67,571,975,747,306.25/5,258,713.50
  6. Step 6: Final answer
    x = 12,849,525.98

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.