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Finding the Fourth Proportional to 7,863.59, 11,795.39 and 2,020.21

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Solution

The fourth proportional to 7,863.59, 11,795.39 and 2,020.21 is: 3,030.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.59 : 11,795.39 = 2,020.21 : x
  2. Step 2: Convert to fraction form
    7,863.59/11,795.39 = 2,020.21/x
  3. Step 3: Cross multiply
    7,863.59x = 11,795.39 × 2,020.21
  4. Step 4: Simplify right side
    7,863.59x = 23,829,132.82
  5. Step 5: Solve for x
    x = 23,829,132.82/7,863.59
  6. Step 6: Final answer
    x = 3,030.31

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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.