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Finding the Fourth Proportional to 28,558.76, 42,844.42 and 8,567.44

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Solution

The fourth proportional to 28,558.76, 42,844.42 and 8,567.44 is: 12,853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558.76 : 42,844.42 = 8,567.44 : x
  2. Step 2: Convert to fraction form
    28,558.76/42,844.42 = 8,567.44/x
  3. Step 3: Cross multiply
    28,558.76x = 42,844.42 × 8,567.44
  4. Step 4: Simplify right side
    28,558.76x = 367,066,997.68
  5. Step 5: Solve for x
    x = 367,066,997.68/28,558.76
  6. Step 6: Final answer
    x = 12,853.04

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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.