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Finding the Fourth Proportional to 12,661.04, 17,472.14 and 6,996.17

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Solution

The fourth proportional to 12,661.04, 17,472.14 and 6,996.17 is: 9,654.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661.04 : 17,472.14 = 6,996.17 : x
  2. Step 2: Convert to fraction form
    12,661.04/17,472.14 = 6,996.17/x
  3. Step 3: Cross multiply
    12,661.04x = 17,472.14 × 6,996.17
  4. Step 4: Simplify right side
    12,661.04x = 122,238,096.64
  5. Step 5: Solve for x
    x = 122,238,096.64/12,661.04
  6. Step 6: Final answer
    x = 9,654.66

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1.5x scale

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.