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Finding the Fourth Proportional to 6,463,638.99, 9,692,477.61 and 1,913,060.61

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Solution

The fourth proportional to 6,463,638.99, 9,692,477.61 and 1,913,060.61 is: 2,868,708.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,463,638.99 : 9,692,477.61 = 1,913,060.61 : x
  2. Step 2: Convert to fraction form
    6,463,638.99/9,692,477.61 = 1,913,060.61/x
  3. Step 3: Cross multiply
    6,463,638.99x = 9,692,477.61 × 1,913,060.61
  4. Step 4: Simplify right side
    6,463,638.99x = 18,542,297,128,997.94
  5. Step 5: Solve for x
    x = 18,542,297,128,997.94/6,463,638.99
  6. Step 6: Final answer
    x = 2,868,708.66

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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.