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Finding the Fourth Proportional to 7,963.98, 11,942.10 and 2,416.32

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Solution

The fourth proportional to 7,963.98, 11,942.10 and 2,416.32 is: 3,623.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.98 : 11,942.10 = 2,416.32 : x
  2. Step 2: Convert to fraction form
    7,963.98/11,942.10 = 2,416.32/x
  3. Step 3: Cross multiply
    7,963.98x = 11,942.10 × 2,416.32
  4. Step 4: Simplify right side
    7,963.98x = 28,855,935.07
  5. Step 5: Solve for x
    x = 28,855,935.07/7,963.98
  6. Step 6: Final answer
    x = 3,623.31

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1.5x scale

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.