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Finding the Fourth Proportional to 15,212.56, 22,771.04 and 9,672.16

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Solution

The fourth proportional to 15,212.56, 22,771.04 and 9,672.16 is: 14,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.56 : 22,771.04 = 9,672.16 : x
  2. Step 2: Convert to fraction form
    15,212.56/22,771.04 = 9,672.16/x
  3. Step 3: Cross multiply
    15,212.56x = 22,771.04 × 9,672.16
  4. Step 4: Simplify right side
    15,212.56x = 220,245,142.25
  5. Step 5: Solve for x
    x = 220,245,142.25/15,212.56
  6. Step 6: Final answer
    x = 14,477.85

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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.