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Finding the Fourth Proportional to 8,971,606.80, 13,441,372.20 and 5,459,770.80

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Solution

The fourth proportional to 8,971,606.80, 13,441,372.20 and 5,459,770.80 is: 8,179,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971,606.80 : 13,441,372.20 = 5,459,770.80 : x
  2. Step 2: Convert to fraction form
    8,971,606.80/13,441,372.20 = 5,459,770.80/x
  3. Step 3: Cross multiply
    8,971,606.80x = 13,441,372.20 × 5,459,770.80
  4. Step 4: Simplify right side
    8,971,606.80x = 73,386,811,449,491.75
  5. Step 5: Solve for x
    x = 73,386,811,449,491.75/8,971,606.80
  6. Step 6: Final answer
    x = 8,179,896.10

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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.