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Finding the Fourth Proportional to 7,912,481.07, 11,868,591.90 and 2,521,058.25

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Solution

The fourth proportional to 7,912,481.07, 11,868,591.90 and 2,521,058.25 is: 3,781,546.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912,481.07 : 11,868,591.90 = 2,521,058.25 : x
  2. Step 2: Convert to fraction form
    7,912,481.07/11,868,591.90 = 2,521,058.25/x
  3. Step 3: Cross multiply
    7,912,481.07x = 11,868,591.90 × 2,521,058.25
  4. Step 4: Simplify right side
    7,912,481.07x = 29,921,411,525,378.18
  5. Step 5: Solve for x
    x = 29,921,411,525,378.18/7,912,481.07
  6. Step 6: Final answer
    x = 3,781,546.05

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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.