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Finding the Fourth Proportional to 9,785.44, 14,684.16 and 5,630.72

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Solution

The fourth proportional to 9,785.44, 14,684.16 and 5,630.72 is: 8,449.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,785.44 : 14,684.16 = 5,630.72 : x
  2. Step 2: Convert to fraction form
    9,785.44/14,684.16 = 5,630.72/x
  3. Step 3: Cross multiply
    9,785.44x = 14,684.16 × 5,630.72
  4. Step 4: Simplify right side
    9,785.44x = 82,682,393.40
  5. Step 5: Solve for x
    x = 82,682,393.40/9,785.44
  6. Step 6: Final answer
    x = 8,449.53

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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.