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Finding the Fourth Proportional to 9,755.84, 13,463.34 and 5,564

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Solution

The fourth proportional to 9,755.84, 13,463.34 and 5,564 is: 7,678.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,755.84 : 13,463.34 = 5,564 : x
  2. Step 2: Convert to fraction form
    9,755.84/13,463.34 = 5,564/x
  3. Step 3: Cross multiply
    9,755.84x = 13,463.34 × 5,564
  4. Step 4: Simplify right side
    9,755.84x = 74,910,023.76
  5. Step 5: Solve for x
    x = 74,910,023.76/9,755.84
  6. Step 6: Final answer
    x = 7,678.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.