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Finding the Fourth Proportional to 8,913.77, 13,374.75 and 3,369.04

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Solution

The fourth proportional to 8,913.77, 13,374.75 and 3,369.04 is: 5,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.77 : 13,374.75 = 3,369.04 : x
  2. Step 2: Convert to fraction form
    8,913.77/13,374.75 = 3,369.04/x
  3. Step 3: Cross multiply
    8,913.77x = 13,374.75 × 3,369.04
  4. Step 4: Simplify right side
    8,913.77x = 45,060,034.30
  5. Step 5: Solve for x
    x = 45,060,034.30/8,913.77
  6. Step 6: Final answer
    x = 5,055.10

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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.