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Finding the Fourth Proportional to 6,247,687.90, 8,621,745.56 and 3,494,368.76

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Solution

The fourth proportional to 6,247,687.90, 8,621,745.56 and 3,494,368.76 is: 4,822,193.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,247,687.90 : 8,621,745.56 = 3,494,368.76 : x
  2. Step 2: Convert to fraction form
    6,247,687.90/8,621,745.56 = 3,494,368.76/x
  3. Step 3: Cross multiply
    6,247,687.90x = 8,621,745.56 × 3,494,368.76
  4. Step 4: Simplify right side
    6,247,687.90x = 30,127,558,341,532.71
  5. Step 5: Solve for x
    x = 30,127,558,341,532.71/6,247,687.90
  6. Step 6: Final answer
    x = 4,822,193.24

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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.