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Finding the Fourth Proportional to 8,592.60, 12,879.30 and 4,896.60

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Solution

The fourth proportional to 8,592.60, 12,879.30 and 4,896.60 is: 7,339.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,592.60 : 12,879.30 = 4,896.60 : x
  2. Step 2: Convert to fraction form
    8,592.60/12,879.30 = 4,896.60/x
  3. Step 3: Cross multiply
    8,592.60x = 12,879.30 × 4,896.60
  4. Step 4: Simplify right side
    8,592.60x = 63,064,780.38
  5. Step 5: Solve for x
    x = 63,064,780.38/8,592.60
  6. Step 6: Final answer
    x = 7,339.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.