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Finding the Fourth Proportional to 12,356.67, 17,052.48 and 7,051.38

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Solution

The fourth proportional to 12,356.67, 17,052.48 and 7,051.38 is: 9,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.67 : 17,052.48 = 7,051.38 : x
  2. Step 2: Convert to fraction form
    12,356.67/17,052.48 = 7,051.38/x
  3. Step 3: Cross multiply
    12,356.67x = 17,052.48 × 7,051.38
  4. Step 4: Simplify right side
    12,356.67x = 120,243,516.42
  5. Step 5: Solve for x
    x = 120,243,516.42/12,356.67
  6. Step 6: Final answer
    x = 9,731.06

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Why These Related Problems?

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