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Finding the Fourth Proportional to 8,571,391.80, 12,848,015.70 and 3,176,575.80

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Solution

The fourth proportional to 8,571,391.80, 12,848,015.70 and 3,176,575.80 is: 4,761,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571,391.80 : 12,848,015.70 = 3,176,575.80 : x
  2. Step 2: Convert to fraction form
    8,571,391.80/12,848,015.70 = 3,176,575.80/x
  3. Step 3: Cross multiply
    8,571,391.80x = 12,848,015.70 × 3,176,575.80
  4. Step 4: Simplify right side
    8,571,391.80x = 40,812,695,750,640.05
  5. Step 5: Solve for x
    x = 40,812,695,750,640.05/8,571,391.80
  6. Step 6: Final answer
    x = 4,761,501.60

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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.