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Finding the Fourth Proportional to 8,626.88, 11,905.03 and 4,900.88

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Solution

The fourth proportional to 8,626.88, 11,905.03 and 4,900.88 is: 6,763.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.88 : 11,905.03 = 4,900.88 : x
  2. Step 2: Convert to fraction form
    8,626.88/11,905.03 = 4,900.88/x
  3. Step 3: Cross multiply
    8,626.88x = 11,905.03 × 4,900.88
  4. Step 4: Simplify right side
    8,626.88x = 58,345,123.43
  5. Step 5: Solve for x
    x = 58,345,123.43/8,626.88
  6. Step 6: Final answer
    x = 6,763.18

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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.