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Finding the Fourth Proportional to 8,964,264.81, 12,369,142.13 and 5,043,476.82

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Solution

The fourth proportional to 8,964,264.81, 12,369,142.13 and 5,043,476.82 is: 6,959,129.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964,264.81 : 12,369,142.13 = 5,043,476.82 : x
  2. Step 2: Convert to fraction form
    8,964,264.81/12,369,142.13 = 5,043,476.82/x
  3. Step 3: Cross multiply
    8,964,264.81x = 12,369,142.13 × 5,043,476.82
  4. Step 4: Simplify right side
    8,964,264.81x = 62,383,481,590,723.05
  5. Step 5: Solve for x
    x = 62,383,481,590,723.05/8,964,264.81
  6. Step 6: Final answer
    x = 6,959,129.71

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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.