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Finding the Fourth Proportional to 12,794.76, 19,197.71 and 4,480.74

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Solution

The fourth proportional to 12,794.76, 19,197.71 and 4,480.74 is: 6,723.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,794.76 : 19,197.71 = 4,480.74 : x
  2. Step 2: Convert to fraction form
    12,794.76/19,197.71 = 4,480.74/x
  3. Step 3: Cross multiply
    12,794.76x = 19,197.71 × 4,480.74
  4. Step 4: Simplify right side
    12,794.76x = 86,019,851.12
  5. Step 5: Solve for x
    x = 86,019,851.12/12,794.76
  6. Step 6: Final answer
    x = 6,723.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.