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Finding the Fourth Proportional to 8,689,950, 11,992,131 and 5,298,462

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Solution

The fourth proportional to 8,689,950, 11,992,131 and 5,298,462 is: 7,311,877.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689,950 : 11,992,131 = 5,298,462 : x
  2. Step 2: Convert to fraction form
    8,689,950/11,992,131 = 5,298,462/x
  3. Step 3: Cross multiply
    8,689,950x = 11,992,131 × 5,298,462
  4. Step 4: Simplify right side
    8,689,950x = 63,539,850,402,522
  5. Step 5: Solve for x
    x = 63,539,850,402,522/8,689,950
  6. Step 6: Final answer
    x = 7,311,877.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.