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Finding the Fourth Proportional to 8,295.60, 12,432.60 and 7,366.80

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Solution

The fourth proportional to 8,295.60, 12,432.60 and 7,366.80 is: 11,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,295.60 : 12,432.60 = 7,366.80 : x
  2. Step 2: Convert to fraction form
    8,295.60/12,432.60 = 7,366.80/x
  3. Step 3: Cross multiply
    8,295.60x = 12,432.60 × 7,366.80
  4. Step 4: Simplify right side
    8,295.60x = 91,588,477.68
  5. Step 5: Solve for x
    x = 91,588,477.68/8,295.60
  6. Step 6: Final answer
    x = 11,040.61

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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.