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Finding the Fourth Proportional to 11,869.96, 16,380.48 and 6,564.48

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Solution

The fourth proportional to 11,869.96, 16,380.48 and 6,564.48 is: 9,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.96 : 16,380.48 = 6,564.48 : x
  2. Step 2: Convert to fraction form
    11,869.96/16,380.48 = 6,564.48/x
  3. Step 3: Cross multiply
    11,869.96x = 16,380.48 × 6,564.48
  4. Step 4: Simplify right side
    11,869.96x = 107,529,333.35
  5. Step 5: Solve for x
    x = 107,529,333.35/11,869.96
  6. Step 6: Final answer
    x = 9,058.95

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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.