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Finding the Fourth Proportional to 7,624.50, 10,522.20 and 4,481.70

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Solution

The fourth proportional to 7,624.50, 10,522.20 and 4,481.70 is: 6,184.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,624.50 : 10,522.20 = 4,481.70 : x
  2. Step 2: Convert to fraction form
    7,624.50/10,522.20 = 4,481.70/x
  3. Step 3: Cross multiply
    7,624.50x = 10,522.20 × 4,481.70
  4. Step 4: Simplify right side
    7,624.50x = 47,157,343.74
  5. Step 5: Solve for x
    x = 47,157,343.74/7,624.50
  6. Step 6: Final answer
    x = 6,184.98

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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.