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Finding the Fourth Proportional to 9,359.65, 12,905.83 and 6,377.23

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Solution

The fourth proportional to 9,359.65, 12,905.83 and 6,377.23 is: 8,793.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,359.65 : 12,905.83 = 6,377.23 : x
  2. Step 2: Convert to fraction form
    9,359.65/12,905.83 = 6,377.23/x
  3. Step 3: Cross multiply
    9,359.65x = 12,905.83 × 6,377.23
  4. Step 4: Simplify right side
    9,359.65x = 82,303,446.25
  5. Step 5: Solve for x
    x = 82,303,446.25/9,359.65
  6. Step 6: Final answer
    x = 8,793.43

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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.