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Finding the Fourth Proportional to 9,838.77, 14,788.68 and 5,687.11

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Solution

The fourth proportional to 9,838.77, 14,788.68 and 5,687.11 is: 8,548.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,838.77 : 14,788.68 = 5,687.11 : x
  2. Step 2: Convert to fraction form
    9,838.77/14,788.68 = 5,687.11/x
  3. Step 3: Cross multiply
    9,838.77x = 14,788.68 × 5,687.11
  4. Step 4: Simplify right side
    9,838.77x = 84,104,847.07
  5. Step 5: Solve for x
    x = 84,104,847.07/9,838.77
  6. Step 6: Final answer
    x = 8,548.31

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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.