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Finding the Fourth Proportional to 15,051.56, 20,771.24 and 8,337.04

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Solution

The fourth proportional to 15,051.56, 20,771.24 and 8,337.04 is: 11,505.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.56 : 20,771.24 = 8,337.04 : x
  2. Step 2: Convert to fraction form
    15,051.56/20,771.24 = 8,337.04/x
  3. Step 3: Cross multiply
    15,051.56x = 20,771.24 × 8,337.04
  4. Step 4: Simplify right side
    15,051.56x = 173,170,658.73
  5. Step 5: Solve for x
    x = 173,170,658.73/15,051.56
  6. Step 6: Final answer
    x = 11,505.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.