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Finding the Fourth Proportional to 6,553.20, 9,808.20 and 5,084.40

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Solution

The fourth proportional to 6,553.20, 9,808.20 and 5,084.40 is: 7,609.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,553.20 : 9,808.20 = 5,084.40 : x
  2. Step 2: Convert to fraction form
    6,553.20/9,808.20 = 5,084.40/x
  3. Step 3: Cross multiply
    6,553.20x = 9,808.20 × 5,084.40
  4. Step 4: Simplify right side
    6,553.20x = 49,868,812.08
  5. Step 5: Solve for x
    x = 49,868,812.08/6,553.20
  6. Step 6: Final answer
    x = 7,609.84

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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.