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Finding the Fourth Proportional to 11,425.66, 17,140.29 and 4,851.88

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Solution

The fourth proportional to 11,425.66, 17,140.29 and 4,851.88 is: 7,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.66 : 17,140.29 = 4,851.88 : x
  2. Step 2: Convert to fraction form
    11,425.66/17,140.29 = 4,851.88/x
  3. Step 3: Cross multiply
    11,425.66x = 17,140.29 × 4,851.88
  4. Step 4: Simplify right side
    11,425.66x = 83,162,520.28
  5. Step 5: Solve for x
    x = 83,162,520.28/11,425.66
  6. Step 6: Final answer
    x = 7,278.58

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.