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Finding the Fourth Proportional to 7,063.59, 9,748.22 and 3,919.79

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Solution

The fourth proportional to 7,063.59, 9,748.22 and 3,919.79 is: 5,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.59 : 9,748.22 = 3,919.79 : x
  2. Step 2: Convert to fraction form
    7,063.59/9,748.22 = 3,919.79/x
  3. Step 3: Cross multiply
    7,063.59x = 9,748.22 × 3,919.79
  4. Step 4: Simplify right side
    7,063.59x = 38,210,906.93
  5. Step 5: Solve for x
    x = 38,210,906.93/7,063.59
  6. Step 6: Final answer
    x = 5,409.56

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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.