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Finding the Fourth Proportional to 11,850.96, 17,780.52 and 5,281.68

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Solution

The fourth proportional to 11,850.96, 17,780.52 and 5,281.68 is: 7,924.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,850.96 : 17,780.52 = 5,281.68 : x
  2. Step 2: Convert to fraction form
    11,850.96/17,780.52 = 5,281.68/x
  3. Step 3: Cross multiply
    11,850.96x = 17,780.52 × 5,281.68
  4. Step 4: Simplify right side
    11,850.96x = 93,911,016.87
  5. Step 5: Solve for x
    x = 93,911,016.87/11,850.96
  6. Step 6: Final answer
    x = 7,924.34

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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.