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Finding the Fourth Proportional to 8,869,661.30, 13,304,491.95 and 8,019,355.70

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Solution

The fourth proportional to 8,869,661.30, 13,304,491.95 and 8,019,355.70 is: 12,029,033.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869,661.30 : 13,304,491.95 = 8,019,355.70 : x
  2. Step 2: Convert to fraction form
    8,869,661.30/13,304,491.95 = 8,019,355.70/x
  3. Step 3: Cross multiply
    8,869,661.30x = 13,304,491.95 × 8,019,355.70
  4. Step 4: Simplify right side
    8,869,661.30x = 106,693,453,354,836.61
  5. Step 5: Solve for x
    x = 106,693,453,354,836.61/8,869,661.30
  6. Step 6: Final answer
    x = 12,029,033.55

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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.