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Finding the Fourth Proportional to 7,994.54, 11,972.64 and 4,475.90

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Solution

The fourth proportional to 7,994.54, 11,972.64 and 4,475.90 is: 6,703.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.54 : 11,972.64 = 4,475.90 : x
  2. Step 2: Convert to fraction form
    7,994.54/11,972.64 = 4,475.90/x
  3. Step 3: Cross multiply
    7,994.54x = 11,972.64 × 4,475.90
  4. Step 4: Simplify right side
    7,994.54x = 53,588,339.38
  5. Step 5: Solve for x
    x = 53,588,339.38/7,994.54
  6. Step 6: Final answer
    x = 6,703.12

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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.