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Finding the Fourth Proportional to 7,433,419.20, 11,150,128.80 and 7,433,419.20

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Solution

The fourth proportional to 7,433,419.20, 11,150,128.80 and 7,433,419.20 is: 11,150,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,433,419.20 : 11,150,128.80 = 7,433,419.20 : x
  2. Step 2: Convert to fraction form
    7,433,419.20/11,150,128.80 = 7,433,419.20/x
  3. Step 3: Cross multiply
    7,433,419.20x = 11,150,128.80 × 7,433,419.20
  4. Step 4: Simplify right side
    7,433,419.20x = 82,883,581,504,392.97
  5. Step 5: Solve for x
    x = 82,883,581,504,392.97/7,433,419.20
  6. Step 6: Final answer
    x = 11,150,128.80

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1.5x scale

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.