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Finding the Fourth Proportional to 6,497,511.85, 8,966,672.51 and 3,557,279.89

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Solution

The fourth proportional to 6,497,511.85, 8,966,672.51 and 3,557,279.89 is: 4,909,104.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,497,511.85 : 8,966,672.51 = 3,557,279.89 : x
  2. Step 2: Convert to fraction form
    6,497,511.85/8,966,672.51 = 3,557,279.89/x
  3. Step 3: Cross multiply
    6,497,511.85x = 8,966,672.51 × 3,557,279.89
  4. Step 4: Simplify right side
    6,497,511.85x = 31,896,963,763,032.93
  5. Step 5: Solve for x
    x = 31,896,963,763,032.93/6,497,511.85
  6. Step 6: Final answer
    x = 4,909,104.37

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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.