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Finding the Fourth Proportional to 7,908.36, 11,854.80 and 4,443

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Solution

The fourth proportional to 7,908.36, 11,854.80 and 4,443 is: 6,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.36 : 11,854.80 = 4,443 : x
  2. Step 2: Convert to fraction form
    7,908.36/11,854.80 = 4,443/x
  3. Step 3: Cross multiply
    7,908.36x = 11,854.80 × 4,443
  4. Step 4: Simplify right side
    7,908.36x = 52,670,876.40
  5. Step 5: Solve for x
    x = 52,670,876.40/7,908.36
  6. Step 6: Final answer
    x = 6,660.15

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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.