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Finding the Fourth Proportional to 9,553.65, 13,195.22 and 8,712.87

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Solution

The fourth proportional to 9,553.65, 13,195.22 and 8,712.87 is: 12,033.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,553.65 : 13,195.22 = 8,712.87 : x
  2. Step 2: Convert to fraction form
    9,553.65/13,195.22 = 8,712.87/x
  3. Step 3: Cross multiply
    9,553.65x = 13,195.22 × 8,712.87
  4. Step 4: Simplify right side
    9,553.65x = 114,968,236.48
  5. Step 5: Solve for x
    x = 114,968,236.48/9,553.65
  6. Step 6: Final answer
    x = 12,033.96

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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.