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Finding the Fourth Proportional to 8,485.92, 11,710.56 and 4,759.92

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Solution

The fourth proportional to 8,485.92, 11,710.56 and 4,759.92 is: 6,568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.92 : 11,710.56 = 4,759.92 : x
  2. Step 2: Convert to fraction form
    8,485.92/11,710.56 = 4,759.92/x
  3. Step 3: Cross multiply
    8,485.92x = 11,710.56 × 4,759.92
  4. Step 4: Simplify right side
    8,485.92x = 55,741,328.76
  5. Step 5: Solve for x
    x = 55,741,328.76/8,485.92
  6. Step 6: Final answer
    x = 6,568.68

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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.