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Finding the Fourth Proportional to 11,955.37, 16,496.98 and 6,921.17

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Solution

The fourth proportional to 11,955.37, 16,496.98 and 6,921.17 is: 9,550.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.37 : 16,496.98 = 6,921.17 : x
  2. Step 2: Convert to fraction form
    11,955.37/16,496.98 = 6,921.17/x
  3. Step 3: Cross multiply
    11,955.37x = 16,496.98 × 6,921.17
  4. Step 4: Simplify right side
    11,955.37x = 114,178,403.07
  5. Step 5: Solve for x
    x = 114,178,403.07/11,955.37
  6. Step 6: Final answer
    x = 9,550.39

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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.