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Finding the Fourth Proportional to 5,957.90, 8,221.53 and 3,719.65

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Solution

The fourth proportional to 5,957.90, 8,221.53 and 3,719.65 is: 5,132.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,957.90 : 8,221.53 = 3,719.65 : x
  2. Step 2: Convert to fraction form
    5,957.90/8,221.53 = 3,719.65/x
  3. Step 3: Cross multiply
    5,957.90x = 8,221.53 × 3,719.65
  4. Step 4: Simplify right side
    5,957.90x = 30,581,168.37
  5. Step 5: Solve for x
    x = 30,581,168.37/5,957.90
  6. Step 6: Final answer
    x = 5,132.87

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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.