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Finding the Fourth Proportional to 26,592,992.40, 39,890,800.80 and 13,838,408.40

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Solution

The fourth proportional to 26,592,992.40, 39,890,800.80 and 13,838,408.40 is: 20,758,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,592,992.40 : 39,890,800.80 = 13,838,408.40 : x
  2. Step 2: Convert to fraction form
    26,592,992.40/39,890,800.80 = 13,838,408.40/x
  3. Step 3: Cross multiply
    26,592,992.40x = 39,890,800.80 × 13,838,408.40
  4. Step 4: Simplify right side
    26,592,992.40x = 552,025,192,873,446.69
  5. Step 5: Solve for x
    x = 552,025,192,873,446.69/26,592,992.40
  6. Step 6: Final answer
    x = 20,758,295.44

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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.