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Finding the Fourth Proportional to 6,414,963.72, 9,623,881.72 and 2,155,015.77

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Solution

The fourth proportional to 6,414,963.72, 9,623,881.72 and 2,155,015.77 is: 3,233,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,414,963.72 : 9,623,881.72 = 2,155,015.77 : x
  2. Step 2: Convert to fraction form
    6,414,963.72/9,623,881.72 = 2,155,015.77/x
  3. Step 3: Cross multiply
    6,414,963.72x = 9,623,881.72 × 2,155,015.77
  4. Step 4: Simplify right side
    6,414,963.72x = 20,739,616,841,818.93
  5. Step 5: Solve for x
    x = 20,739,616,841,818.93/6,414,963.72
  6. Step 6: Final answer
    x = 3,233,006.10

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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.