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Finding the Fourth Proportional to 7,866.96, 11,800.68 and 2,320.24

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Solution

The fourth proportional to 7,866.96, 11,800.68 and 2,320.24 is: 3,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.96 : 11,800.68 = 2,320.24 : x
  2. Step 2: Convert to fraction form
    7,866.96/11,800.68 = 2,320.24/x
  3. Step 3: Cross multiply
    7,866.96x = 11,800.68 × 2,320.24
  4. Step 4: Simplify right side
    7,866.96x = 27,380,409.76
  5. Step 5: Solve for x
    x = 27,380,409.76/7,866.96
  6. Step 6: Final answer
    x = 3,480.43

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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.