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Finding the Fourth Proportional to 12,339.67, 17,029.19 and 7,033.63

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Solution

The fourth proportional to 12,339.67, 17,029.19 and 7,033.63 is: 9,706.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.67 : 17,029.19 = 7,033.63 : x
  2. Step 2: Convert to fraction form
    12,339.67/17,029.19 = 7,033.63/x
  3. Step 3: Cross multiply
    12,339.67x = 17,029.19 × 7,033.63
  4. Step 4: Simplify right side
    12,339.67x = 119,777,021.66
  5. Step 5: Solve for x
    x = 119,777,021.66/12,339.67
  6. Step 6: Final answer
    x = 9,706.66

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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.