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Finding the Fourth Proportional to 8,465,674.80, 12,679,849.80 and 7,345,930.80

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Solution

The fourth proportional to 8,465,674.80, 12,679,849.80 and 7,345,930.80 is: 11,002,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465,674.80 : 12,679,849.80 = 7,345,930.80 : x
  2. Step 2: Convert to fraction form
    8,465,674.80/12,679,849.80 = 7,345,930.80/x
  3. Step 3: Cross multiply
    8,465,674.80x = 12,679,849.80 × 7,345,930.80
  4. Step 4: Simplify right side
    8,465,674.80x = 93,145,299,185,193.84
  5. Step 5: Solve for x
    x = 93,145,299,185,193.84/8,465,674.80
  6. Step 6: Final answer
    x = 11,002,702.25

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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.