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Finding the Fourth Proportional to 7,321.91, 10,957.32 and 5,990.27

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Solution

The fourth proportional to 7,321.91, 10,957.32 and 5,990.27 is: 8,964.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.91 : 10,957.32 = 5,990.27 : x
  2. Step 2: Convert to fraction form
    7,321.91/10,957.32 = 5,990.27/x
  3. Step 3: Cross multiply
    7,321.91x = 10,957.32 × 5,990.27
  4. Step 4: Simplify right side
    7,321.91x = 65,637,250.49
  5. Step 5: Solve for x
    x = 65,637,250.49/7,321.91
  6. Step 6: Final answer
    x = 8,964.50

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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.