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Finding the Fourth Proportional to 11,294.64, 16,954.56 and 6,620.16

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Solution

The fourth proportional to 11,294.64, 16,954.56 and 6,620.16 is: 9,937.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,294.64 : 16,954.56 = 6,620.16 : x
  2. Step 2: Convert to fraction form
    11,294.64/16,954.56 = 6,620.16/x
  3. Step 3: Cross multiply
    11,294.64x = 16,954.56 × 6,620.16
  4. Step 4: Simplify right side
    11,294.64x = 112,241,899.93
  5. Step 5: Solve for x
    x = 112,241,899.93/11,294.64
  6. Step 6: Final answer
    x = 9,937.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.