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Finding the Fourth Proportional to 7,374.72, 11,073.24 and 7,063.68

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Solution

The fourth proportional to 7,374.72, 11,073.24 and 7,063.68 is: 10,606.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.72 : 11,073.24 = 7,063.68 : x
  2. Step 2: Convert to fraction form
    7,374.72/11,073.24 = 7,063.68/x
  3. Step 3: Cross multiply
    7,374.72x = 11,073.24 × 7,063.68
  4. Step 4: Simplify right side
    7,374.72x = 78,217,823.92
  5. Step 5: Solve for x
    x = 78,217,823.92/7,374.72
  6. Step 6: Final answer
    x = 10,606.21

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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.