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Finding the Fourth Proportional to 12,343.38, 17,033.43 and 7,039.89

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Solution

The fourth proportional to 12,343.38, 17,033.43 and 7,039.89 is: 9,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343.38 : 17,033.43 = 7,039.89 : x
  2. Step 2: Convert to fraction form
    12,343.38/17,033.43 = 7,039.89/x
  3. Step 3: Cross multiply
    12,343.38x = 17,033.43 × 7,039.89
  4. Step 4: Simplify right side
    12,343.38x = 119,913,473.52
  5. Step 5: Solve for x
    x = 119,913,473.52/12,343.38
  6. Step 6: Final answer
    x = 9,714.80

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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.