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Finding the Fourth Proportional to 45,375.84, 68,063.72 and 14,213.52

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Solution

The fourth proportional to 45,375.84, 68,063.72 and 14,213.52 is: 21,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,375.84 : 68,063.72 = 14,213.52 : x
  2. Step 2: Convert to fraction form
    45,375.84/68,063.72 = 14,213.52/x
  3. Step 3: Cross multiply
    45,375.84x = 68,063.72 × 14,213.52
  4. Step 4: Simplify right side
    45,375.84x = 967,425,045.49
  5. Step 5: Solve for x
    x = 967,425,045.49/45,375.84
  6. Step 6: Final answer
    x = 21,320.27

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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.