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Finding the Fourth Proportional to 12,695.26, 17,519.43 and 7,030.30

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Solution

The fourth proportional to 12,695.26, 17,519.43 and 7,030.30 is: 9,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.26 : 17,519.43 = 7,030.30 : x
  2. Step 2: Convert to fraction form
    12,695.26/17,519.43 = 7,030.30/x
  3. Step 3: Cross multiply
    12,695.26x = 17,519.43 × 7,030.30
  4. Step 4: Simplify right side
    12,695.26x = 123,166,848.73
  5. Step 5: Solve for x
    x = 123,166,848.73/12,695.26
  6. Step 6: Final answer
    x = 9,701.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.