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Finding the Fourth Proportional to 6,654,859.80, 9,982,257.30 and 2,608,488.60

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Solution

The fourth proportional to 6,654,859.80, 9,982,257.30 and 2,608,488.60 is: 3,912,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,654,859.80 : 9,982,257.30 = 2,608,488.60 : x
  2. Step 2: Convert to fraction form
    6,654,859.80/9,982,257.30 = 2,608,488.60/x
  3. Step 3: Cross multiply
    6,654,859.80x = 9,982,257.30 × 2,608,488.60
  4. Step 4: Simplify right side
    6,654,859.80x = 26,038,604,369,316.78
  5. Step 5: Solve for x
    x = 26,038,604,369,316.78/6,654,859.80
  6. Step 6: Final answer
    x = 3,912,720.20

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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.