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Finding the Fourth Proportional to 5,658.57, 7,808.84 and 3,300.86

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Solution

The fourth proportional to 5,658.57, 7,808.84 and 3,300.86 is: 4,555.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,658.57 : 7,808.84 = 3,300.86 : x
  2. Step 2: Convert to fraction form
    5,658.57/7,808.84 = 3,300.86/x
  3. Step 3: Cross multiply
    5,658.57x = 7,808.84 × 3,300.86
  4. Step 4: Simplify right side
    5,658.57x = 25,775,832.05
  5. Step 5: Solve for x
    x = 25,775,832.05/5,658.57
  6. Step 6: Final answer
    x = 4,555.18

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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.