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Finding the Fourth Proportional to 8,479.54, 11,693.43 and 6,468.10

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Solution

The fourth proportional to 8,479.54, 11,693.43 and 6,468.10 is: 8,919.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.54 : 11,693.43 = 6,468.10 : x
  2. Step 2: Convert to fraction form
    8,479.54/11,693.43 = 6,468.10/x
  3. Step 3: Cross multiply
    8,479.54x = 11,693.43 × 6,468.10
  4. Step 4: Simplify right side
    8,479.54x = 75,634,274.58
  5. Step 5: Solve for x
    x = 75,634,274.58/8,479.54
  6. Step 6: Final answer
    x = 8,919.62

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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.