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Finding the Fourth Proportional to 9,474.11, 14,205.08 and 3,931.28

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Solution

The fourth proportional to 9,474.11, 14,205.08 and 3,931.28 is: 5,894.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,474.11 : 14,205.08 = 3,931.28 : x
  2. Step 2: Convert to fraction form
    9,474.11/14,205.08 = 3,931.28/x
  3. Step 3: Cross multiply
    9,474.11x = 14,205.08 × 3,931.28
  4. Step 4: Simplify right side
    9,474.11x = 55,844,085.71
  5. Step 5: Solve for x
    x = 55,844,085.71/9,474.11
  6. Step 6: Final answer
    x = 5,894.39

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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.