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Finding the Fourth Proportional to 12,265.92, 16,928.73 and 6,959.61

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Solution

The fourth proportional to 12,265.92, 16,928.73 and 6,959.61 is: 9,605.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265.92 : 16,928.73 = 6,959.61 : x
  2. Step 2: Convert to fraction form
    12,265.92/16,928.73 = 6,959.61/x
  3. Step 3: Cross multiply
    12,265.92x = 16,928.73 × 6,959.61
  4. Step 4: Simplify right side
    12,265.92x = 117,817,358.60
  5. Step 5: Solve for x
    x = 117,817,358.60/12,265.92
  6. Step 6: Final answer
    x = 9,605.26

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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.