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Finding the Fourth Proportional to 8,300,991.80, 12,439,823.70 and 6,598,047.80

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Solution

The fourth proportional to 8,300,991.80, 12,439,823.70 and 6,598,047.80 is: 9,887,800.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,300,991.80 : 12,439,823.70 = 6,598,047.80 : x
  2. Step 2: Convert to fraction form
    8,300,991.80/12,439,823.70 = 6,598,047.80/x
  3. Step 3: Cross multiply
    8,300,991.80x = 12,439,823.70 × 6,598,047.80
  4. Step 4: Simplify right side
    8,300,991.80x = 82,078,551,396,172.86
  5. Step 5: Solve for x
    x = 82,078,551,396,172.86/8,300,991.80
  6. Step 6: Final answer
    x = 9,887,800.56

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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.