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Finding the Fourth Proportional to 6,468.70, 8,926.56 and 3,955.02

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Solution

The fourth proportional to 6,468.70, 8,926.56 and 3,955.02 is: 5,457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,468.70 : 8,926.56 = 3,955.02 : x
  2. Step 2: Convert to fraction form
    6,468.70/8,926.56 = 3,955.02/x
  3. Step 3: Cross multiply
    6,468.70x = 8,926.56 × 3,955.02
  4. Step 4: Simplify right side
    6,468.70x = 35,304,723.33
  5. Step 5: Solve for x
    x = 35,304,723.33/6,468.70
  6. Step 6: Final answer
    x = 5,457.78

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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.