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Finding the Fourth Proportional to 9,175.60, 13,752.60 and 4,790.80

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Solution

The fourth proportional to 9,175.60, 13,752.60 and 4,790.80 is: 7,180.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,175.60 : 13,752.60 = 4,790.80 : x
  2. Step 2: Convert to fraction form
    9,175.60/13,752.60 = 4,790.80/x
  3. Step 3: Cross multiply
    9,175.60x = 13,752.60 × 4,790.80
  4. Step 4: Simplify right side
    9,175.60x = 65,885,956.08
  5. Step 5: Solve for x
    x = 65,885,956.08/9,175.60
  6. Step 6: Final answer
    x = 7,180.56

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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.