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Finding the Fourth Proportional to 8,493.44, 11,720.48 and 4,956.40

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Solution

The fourth proportional to 8,493.44, 11,720.48 and 4,956.40 is: 6,839.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.44 : 11,720.48 = 4,956.40 : x
  2. Step 2: Convert to fraction form
    8,493.44/11,720.48 = 4,956.40/x
  3. Step 3: Cross multiply
    8,493.44x = 11,720.48 × 4,956.40
  4. Step 4: Simplify right side
    8,493.44x = 58,091,387.07
  5. Step 5: Solve for x
    x = 58,091,387.07/8,493.44
  6. Step 6: Final answer
    x = 6,839.56

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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.