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Finding the Fourth Proportional to 7,475,704.20, 11,213,556.30 and 7,404,845.40

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Solution

The fourth proportional to 7,475,704.20, 11,213,556.30 and 7,404,845.40 is: 11,107,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475,704.20 : 11,213,556.30 = 7,404,845.40 : x
  2. Step 2: Convert to fraction form
    7,475,704.20/11,213,556.30 = 7,404,845.40/x
  3. Step 3: Cross multiply
    7,475,704.20x = 11,213,556.30 × 7,404,845.40
  4. Step 4: Simplify right side
    7,475,704.20x = 83,034,650,785,696.03
  5. Step 5: Solve for x
    x = 83,034,650,785,696.03/7,475,704.20
  6. Step 6: Final answer
    x = 11,107,268.10

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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.