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Finding the Fourth Proportional to 17,764,700.60, 26,647,050.90 and 10,206,428.60

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Solution

The fourth proportional to 17,764,700.60, 26,647,050.90 and 10,206,428.60 is: 15,309,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,764,700.60 : 26,647,050.90 = 10,206,428.60 : x
  2. Step 2: Convert to fraction form
    17,764,700.60/26,647,050.90 = 10,206,428.60/x
  3. Step 3: Cross multiply
    17,764,700.60x = 26,647,050.90 × 10,206,428.60
  4. Step 4: Simplify right side
    17,764,700.60x = 271,971,222,411,415.72
  5. Step 5: Solve for x
    x = 271,971,222,411,415.72/17,764,700.60
  6. Step 6: Final answer
    x = 15,309,642.90

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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.