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Finding the Fourth Proportional to 8,655,461.73, 12,984,373.76 and 3,605,591.25

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Solution

The fourth proportional to 8,655,461.73, 12,984,373.76 and 3,605,591.25 is: 5,408,878.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655,461.73 : 12,984,373.76 = 3,605,591.25 : x
  2. Step 2: Convert to fraction form
    8,655,461.73/12,984,373.76 = 3,605,591.25/x
  3. Step 3: Cross multiply
    8,655,461.73x = 12,984,373.76 × 3,605,591.25
  4. Step 4: Simplify right side
    8,655,461.73x = 46,816,344,397,757.65
  5. Step 5: Solve for x
    x = 46,816,344,397,757.65/8,655,461.73
  6. Step 6: Final answer
    x = 5,408,878.91

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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.