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Finding the Fourth Proportional to 11,966.76, 16,515.09 and 6,662.07

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Solution

The fourth proportional to 11,966.76, 16,515.09 and 6,662.07 is: 9,194.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.76 : 16,515.09 = 6,662.07 : x
  2. Step 2: Convert to fraction form
    11,966.76/16,515.09 = 6,662.07/x
  3. Step 3: Cross multiply
    11,966.76x = 16,515.09 × 6,662.07
  4. Step 4: Simplify right side
    11,966.76x = 110,024,685.64
  5. Step 5: Solve for x
    x = 110,024,685.64/11,966.76
  6. Step 6: Final answer
    x = 9,194.19

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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.