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Finding the Fourth Proportional to 6,662,254.50, 9,193,974.58 and 3,908,988.77

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Solution

The fourth proportional to 6,662,254.50, 9,193,974.58 and 3,908,988.77 is: 5,394,441.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662,254.50 : 9,193,974.58 = 3,908,988.77 : x
  2. Step 2: Convert to fraction form
    6,662,254.50/9,193,974.58 = 3,908,988.77/x
  3. Step 3: Cross multiply
    6,662,254.50x = 9,193,974.58 × 3,908,988.77
  4. Step 4: Simplify right side
    6,662,254.50x = 35,939,143,406,511.97
  5. Step 5: Solve for x
    x = 35,939,143,406,511.97/6,662,254.50
  6. Step 6: Final answer
    x = 5,394,441.69

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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.