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Finding the Fourth Proportional to 10,672.70, 14,728.02 and 5,956.88

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Solution

The fourth proportional to 10,672.70, 14,728.02 and 5,956.88 is: 8,220.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,672.70 : 14,728.02 = 5,956.88 : x
  2. Step 2: Convert to fraction form
    10,672.70/14,728.02 = 5,956.88/x
  3. Step 3: Cross multiply
    10,672.70x = 14,728.02 × 5,956.88
  4. Step 4: Simplify right side
    10,672.70x = 87,733,047.78
  5. Step 5: Solve for x
    x = 87,733,047.78/10,672.70
  6. Step 6: Final answer
    x = 8,220.32

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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.