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Finding the Fourth Proportional to 8,623.24, 11,900.18 and 8,325.22

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Solution

The fourth proportional to 8,623.24, 11,900.18 and 8,325.22 is: 11,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.24 : 11,900.18 = 8,325.22 : x
  2. Step 2: Convert to fraction form
    8,623.24/11,900.18 = 8,325.22/x
  3. Step 3: Cross multiply
    8,623.24x = 11,900.18 × 8,325.22
  4. Step 4: Simplify right side
    8,623.24x = 99,071,616.54
  5. Step 5: Solve for x
    x = 99,071,616.54/8,623.24
  6. Step 6: Final answer
    x = 11,488.91

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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.