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Finding the Fourth Proportional to 7,777,374.35, 10,863,129.85 and 7,777,374.35

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Solution

The fourth proportional to 7,777,374.35, 10,863,129.85 and 7,777,374.35 is: 10,863,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777,374.35 : 10,863,129.85 = 7,777,374.35 : x
  2. Step 2: Convert to fraction form
    7,777,374.35/10,863,129.85 = 7,777,374.35/x
  3. Step 3: Cross multiply
    7,777,374.35x = 10,863,129.85 × 7,777,374.35
  4. Step 4: Simplify right side
    7,777,374.35x = 84,486,627,456,109.34
  5. Step 5: Solve for x
    x = 84,486,627,456,109.34/7,777,374.35
  6. Step 6: Final answer
    x = 10,863,129.85

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.