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Finding the Fourth Proportional to 8,927.81, 13,393.41 and 3,591.40

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Solution

The fourth proportional to 8,927.81, 13,393.41 and 3,591.40 is: 5,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.81 : 13,393.41 = 3,591.40 : x
  2. Step 2: Convert to fraction form
    8,927.81/13,393.41 = 3,591.40/x
  3. Step 3: Cross multiply
    8,927.81x = 13,393.41 × 3,591.40
  4. Step 4: Simplify right side
    8,927.81x = 48,101,007.75
  5. Step 5: Solve for x
    x = 48,101,007.75/8,927.81
  6. Step 6: Final answer
    x = 5,387.77

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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.