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Finding the Fourth Proportional to 5,441.72, 7,509.58 and 2,957.72

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Solution

The fourth proportional to 5,441.72, 7,509.58 and 2,957.72 is: 4,081.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,441.72 : 7,509.58 = 2,957.72 : x
  2. Step 2: Convert to fraction form
    5,441.72/7,509.58 = 2,957.72/x
  3. Step 3: Cross multiply
    5,441.72x = 7,509.58 × 2,957.72
  4. Step 4: Simplify right side
    5,441.72x = 22,211,234.96
  5. Step 5: Solve for x
    x = 22,211,234.96/5,441.72
  6. Step 6: Final answer
    x = 4,081.66

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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.