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Finding the Fourth Proportional to 16,679.76, 25,018.20 and 4,995.60

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Solution

The fourth proportional to 16,679.76, 25,018.20 and 4,995.60 is: 7,492.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679.76 : 25,018.20 = 4,995.60 : x
  2. Step 2: Convert to fraction form
    16,679.76/25,018.20 = 4,995.60/x
  3. Step 3: Cross multiply
    16,679.76x = 25,018.20 × 4,995.60
  4. Step 4: Simplify right side
    16,679.76x = 124,980,919.92
  5. Step 5: Solve for x
    x = 124,980,919.92/16,679.76
  6. Step 6: Final answer
    x = 7,492.97

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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.