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Finding the Fourth Proportional to 16,630.70, 24,885.30 and 12,256.70

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Solution

The fourth proportional to 16,630.70, 24,885.30 and 12,256.70 is: 18,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,630.70 : 24,885.30 = 12,256.70 : x
  2. Step 2: Convert to fraction form
    16,630.70/24,885.30 = 12,256.70/x
  3. Step 3: Cross multiply
    16,630.70x = 24,885.30 × 12,256.70
  4. Step 4: Simplify right side
    16,630.70x = 305,011,656.51
  5. Step 5: Solve for x
    x = 305,011,656.51/16,630.70
  6. Step 6: Final answer
    x = 18,340.28

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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.