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Finding the Third Proportional to 6,422,981.70 and 8,748,494.54

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Solution

The third proportional to 6,422,981.70 and 8,748,494.54 is: 11,915,985.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422,981.70 : 8,748,494.54 = 8,748,494.54 : x
  2. Step 2: Convert to fraction form
    6,422,981.70/8,748,494.54 = 8,748,494.54/x
  3. Step 3: Cross multiply
    6,422,981.70x = 8,748,494.54 × 8,748,494.54
  4. Step 4: Simplify right side
    6,422,981.70x = 76,536,156,768,354.88
  5. Step 5: Solve for x
    x = 76,536,156,768,354.88/6,422,981.70
  6. Step 6: Final answer
    x = 11,915,985.50

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.