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Finding the Fourth Proportional to 8,817.69, 12,168.45 and 4,839.24

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Solution

The fourth proportional to 8,817.69, 12,168.45 and 4,839.24 is: 6,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.69 : 12,168.45 = 4,839.24 : x
  2. Step 2: Convert to fraction form
    8,817.69/12,168.45 = 4,839.24/x
  3. Step 3: Cross multiply
    8,817.69x = 12,168.45 × 4,839.24
  4. Step 4: Simplify right side
    8,817.69x = 58,886,049.98
  5. Step 5: Solve for x
    x = 58,886,049.98/8,817.69
  6. Step 6: Final answer
    x = 6,678.17

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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.