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Finding the Fourth Proportional to 13,337.76, 20,004.48 and 7,505.76

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Solution

The fourth proportional to 13,337.76, 20,004.48 and 7,505.76 is: 11,257.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.76 : 20,004.48 = 7,505.76 : x
  2. Step 2: Convert to fraction form
    13,337.76/20,004.48 = 7,505.76/x
  3. Step 3: Cross multiply
    13,337.76x = 20,004.48 × 7,505.76
  4. Step 4: Simplify right side
    13,337.76x = 150,148,825.80
  5. Step 5: Solve for x
    x = 150,148,825.80/13,337.76
  6. Step 6: Final answer
    x = 11,257.42

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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.