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Finding the Fourth Proportional to 11,553.50, 15,943.86 and 6,248.34

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Solution

The fourth proportional to 11,553.50, 15,943.86 and 6,248.34 is: 8,622.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,553.50 : 15,943.86 = 6,248.34 : x
  2. Step 2: Convert to fraction form
    11,553.50/15,943.86 = 6,248.34/x
  3. Step 3: Cross multiply
    11,553.50x = 15,943.86 × 6,248.34
  4. Step 4: Simplify right side
    11,553.50x = 99,622,658.19
  5. Step 5: Solve for x
    x = 99,622,658.19/11,553.50
  6. Step 6: Final answer
    x = 8,622.73

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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.