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Finding the Fourth Proportional to 11,841.84, 17,765.71 and 3,521.84

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Solution

The fourth proportional to 11,841.84, 17,765.71 and 3,521.84 is: 5,283.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,841.84 : 17,765.71 = 3,521.84 : x
  2. Step 2: Convert to fraction form
    11,841.84/17,765.71 = 3,521.84/x
  3. Step 3: Cross multiply
    11,841.84x = 17,765.71 × 3,521.84
  4. Step 4: Simplify right side
    11,841.84x = 62,567,890.47
  5. Step 5: Solve for x
    x = 62,567,890.47/11,841.84
  6. Step 6: Final answer
    x = 5,283.63

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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.