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Finding the Fourth Proportional to 7,572.64, 11,339.92 and 4,790.88

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Solution

The fourth proportional to 7,572.64, 11,339.92 and 4,790.88 is: 7,174.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.64 : 11,339.92 = 4,790.88 : x
  2. Step 2: Convert to fraction form
    7,572.64/11,339.92 = 4,790.88/x
  3. Step 3: Cross multiply
    7,572.64x = 11,339.92 × 4,790.88
  4. Step 4: Simplify right side
    7,572.64x = 54,328,195.93
  5. Step 5: Solve for x
    x = 54,328,195.93/7,572.64
  6. Step 6: Final answer
    x = 7,174.27

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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.