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Finding the Fourth Proportional to 8,383,806.72, 12,578,159.52 and 2,703,905.28

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Solution

The fourth proportional to 8,383,806.72, 12,578,159.52 and 2,703,905.28 is: 4,056,647.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,383,806.72 : 12,578,159.52 = 2,703,905.28 : x
  2. Step 2: Convert to fraction form
    8,383,806.72/12,578,159.52 = 2,703,905.28/x
  3. Step 3: Cross multiply
    8,383,806.72x = 12,578,159.52 × 2,703,905.28
  4. Step 4: Simplify right side
    8,383,806.72x = 34,010,151,938,810.26
  5. Step 5: Solve for x
    x = 34,010,151,938,810.26/8,383,806.72
  6. Step 6: Final answer
    x = 4,056,647.90

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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.