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Finding the Fourth Proportional to 7,635.71, 11,453.70 and 5,019.88

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Solution

The fourth proportional to 7,635.71, 11,453.70 and 5,019.88 is: 7,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,635.71 : 11,453.70 = 5,019.88 : x
  2. Step 2: Convert to fraction form
    7,635.71/11,453.70 = 5,019.88/x
  3. Step 3: Cross multiply
    7,635.71x = 11,453.70 × 5,019.88
  4. Step 4: Simplify right side
    7,635.71x = 57,496,199.56
  5. Step 5: Solve for x
    x = 57,496,199.56/7,635.71
  6. Step 6: Final answer
    x = 7,529.91

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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.