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Finding the Fourth Proportional to 4,895.60, 7,359.60 and 4,182.80

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Solution

The fourth proportional to 4,895.60, 7,359.60 and 4,182.80 is: 6,288.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,895.60 : 7,359.60 = 4,182.80 : x
  2. Step 2: Convert to fraction form
    4,895.60/7,359.60 = 4,182.80/x
  3. Step 3: Cross multiply
    4,895.60x = 7,359.60 × 4,182.80
  4. Step 4: Simplify right side
    4,895.60x = 30,783,734.88
  5. Step 5: Solve for x
    x = 30,783,734.88/4,895.60
  6. Step 6: Final answer
    x = 6,288.04

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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.