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Finding the Fourth Proportional to 11,793.84, 16,275.57 and 6,489.12

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Solution

The fourth proportional to 11,793.84, 16,275.57 and 6,489.12 is: 8,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,793.84 : 16,275.57 = 6,489.12 : x
  2. Step 2: Convert to fraction form
    11,793.84/16,275.57 = 6,489.12/x
  3. Step 3: Cross multiply
    11,793.84x = 16,275.57 × 6,489.12
  4. Step 4: Simplify right side
    11,793.84x = 105,614,126.80
  5. Step 5: Solve for x
    x = 105,614,126.80/11,793.84
  6. Step 6: Final answer
    x = 8,955.02

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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.