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Finding the Fourth Proportional to 11,770.84, 17,641.91 and 6,505.64

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Solution

The fourth proportional to 11,770.84, 17,641.91 and 6,505.64 is: 9,750.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,770.84 : 17,641.91 = 6,505.64 : x
  2. Step 2: Convert to fraction form
    11,770.84/17,641.91 = 6,505.64/x
  3. Step 3: Cross multiply
    11,770.84x = 17,641.91 × 6,505.64
  4. Step 4: Simplify right side
    11,770.84x = 114,771,968.35
  5. Step 5: Solve for x
    x = 114,771,968.35/11,770.84
  6. Step 6: Final answer
    x = 9,750.53

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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.