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Finding the Fourth Proportional to 12,695.34, 17,520.12 and 7,030.09

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Solution

The fourth proportional to 12,695.34, 17,520.12 and 7,030.09 is: 9,701.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.34 : 17,520.12 = 7,030.09 : x
  2. Step 2: Convert to fraction form
    12,695.34/17,520.12 = 7,030.09/x
  3. Step 3: Cross multiply
    12,695.34x = 17,520.12 × 7,030.09
  4. Step 4: Simplify right side
    12,695.34x = 123,168,020.41
  5. Step 5: Solve for x
    x = 123,168,020.41/12,695.34
  6. Step 6: Final answer
    x = 9,701.83

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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.