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Finding the Fourth Proportional to 8,320.03, 12,473.90 and 3,932.36

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Solution

The fourth proportional to 8,320.03, 12,473.90 and 3,932.36 is: 5,895.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.03 : 12,473.90 = 3,932.36 : x
  2. Step 2: Convert to fraction form
    8,320.03/12,473.90 = 3,932.36/x
  3. Step 3: Cross multiply
    8,320.03x = 12,473.90 × 3,932.36
  4. Step 4: Simplify right side
    8,320.03x = 49,051,865.40
  5. Step 5: Solve for x
    x = 49,051,865.40/8,320.03
  6. Step 6: Final answer
    x = 5,895.64

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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.