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Finding the Fourth Proportional to 36,232.80, 54,358.80 and 12,856.80

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Solution

The fourth proportional to 36,232.80, 54,358.80 and 12,856.80 is: 19,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,232.80 : 54,358.80 = 12,856.80 : x
  2. Step 2: Convert to fraction form
    36,232.80/54,358.80 = 12,856.80/x
  3. Step 3: Cross multiply
    36,232.80x = 54,358.80 × 12,856.80
  4. Step 4: Simplify right side
    36,232.80x = 698,880,219.84
  5. Step 5: Solve for x
    x = 698,880,219.84/36,232.80
  6. Step 6: Final answer
    x = 19,288.61

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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.