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Finding the Fourth Proportional to 8,489.52, 11,716.14 and 4,713.06

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Solution

The fourth proportional to 8,489.52, 11,716.14 and 4,713.06 is: 6,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.52 : 11,716.14 = 4,713.06 : x
  2. Step 2: Convert to fraction form
    8,489.52/11,716.14 = 4,713.06/x
  3. Step 3: Cross multiply
    8,489.52x = 11,716.14 × 4,713.06
  4. Step 4: Simplify right side
    8,489.52x = 55,218,870.79
  5. Step 5: Solve for x
    x = 55,218,870.79/8,489.52
  6. Step 6: Final answer
    x = 6,504.36

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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.