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Finding the Fourth Proportional to 9,841.32, 14,751.18 and 5,457.24

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Solution

The fourth proportional to 9,841.32, 14,751.18 and 5,457.24 is: 8,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,841.32 : 14,751.18 = 5,457.24 : x
  2. Step 2: Convert to fraction form
    9,841.32/14,751.18 = 5,457.24/x
  3. Step 3: Cross multiply
    9,841.32x = 14,751.18 × 5,457.24
  4. Step 4: Simplify right side
    9,841.32x = 80,500,729.54
  5. Step 5: Solve for x
    x = 80,500,729.54/9,841.32
  6. Step 6: Final answer
    x = 8,179.87

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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.