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Finding the Fourth Proportional to 16,679.64, 25,018.98 and 4,199.64

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Solution

The fourth proportional to 16,679.64, 25,018.98 and 4,199.64 is: 6,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679.64 : 25,018.98 = 4,199.64 : x
  2. Step 2: Convert to fraction form
    16,679.64/25,018.98 = 4,199.64/x
  3. Step 3: Cross multiply
    16,679.64x = 25,018.98 × 4,199.64
  4. Step 4: Simplify right side
    16,679.64x = 105,070,709.17
  5. Step 5: Solve for x
    x = 105,070,709.17/16,679.64
  6. Step 6: Final answer
    x = 6,299.34

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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.