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Finding the Fourth Proportional to 8,325.45, 11,502.63 and 8,243.53

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Solution

The fourth proportional to 8,325.45, 11,502.63 and 8,243.53 is: 11,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.45 : 11,502.63 = 8,243.53 : x
  2. Step 2: Convert to fraction form
    8,325.45/11,502.63 = 8,243.53/x
  3. Step 3: Cross multiply
    8,325.45x = 11,502.63 × 8,243.53
  4. Step 4: Simplify right side
    8,325.45x = 94,822,234.27
  5. Step 5: Solve for x
    x = 94,822,234.27/8,325.45
  6. Step 6: Final answer
    x = 11,389.44

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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.