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Finding the Fourth Proportional to 5,189.49, 7,144.17 and 4,951.17

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Solution

The fourth proportional to 5,189.49, 7,144.17 and 4,951.17 is: 6,816.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.49 : 7,144.17 = 4,951.17 : x
  2. Step 2: Convert to fraction form
    5,189.49/7,144.17 = 4,951.17/x
  3. Step 3: Cross multiply
    5,189.49x = 7,144.17 × 4,951.17
  4. Step 4: Simplify right side
    5,189.49x = 35,372,000.18
  5. Step 5: Solve for x
    x = 35,372,000.18/5,189.49
  6. Step 6: Final answer
    x = 6,816.08

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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.