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Finding the Fourth Proportional to 8,517,658.80, 12,771,822.60 and 3,463,258.80

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Solution

The fourth proportional to 8,517,658.80, 12,771,822.60 and 3,463,258.80 is: 5,192,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517,658.80 : 12,771,822.60 = 3,463,258.80 : x
  2. Step 2: Convert to fraction form
    8,517,658.80/12,771,822.60 = 3,463,258.80/x
  3. Step 3: Cross multiply
    8,517,658.80x = 12,771,822.60 × 3,463,258.80
  4. Step 4: Simplify right side
    8,517,658.80x = 44,232,127,011,488.88
  5. Step 5: Solve for x
    x = 44,232,127,011,488.88/8,517,658.80
  6. Step 6: Final answer
    x = 5,192,991.18

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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.