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Finding the Fourth Proportional to 12,339.80, 17,027.64 and 7,033.52

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Solution

The fourth proportional to 12,339.80, 17,027.64 and 7,033.52 is: 9,705.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.80 : 17,027.64 = 7,033.52 : x
  2. Step 2: Convert to fraction form
    12,339.80/17,027.64 = 7,033.52/x
  3. Step 3: Cross multiply
    12,339.80x = 17,027.64 × 7,033.52
  4. Step 4: Simplify right side
    12,339.80x = 119,764,246.49
  5. Step 5: Solve for x
    x = 119,764,246.49/12,339.80
  6. Step 6: Final answer
    x = 9,705.53

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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.