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Finding the Fourth Proportional to 9,876.49, 14,814.74 and 3,956.07

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Solution

The fourth proportional to 9,876.49, 14,814.74 and 3,956.07 is: 5,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876.49 : 14,814.74 = 3,956.07 : x
  2. Step 2: Convert to fraction form
    9,876.49/14,814.74 = 3,956.07/x
  3. Step 3: Cross multiply
    9,876.49x = 14,814.74 × 3,956.07
  4. Step 4: Simplify right side
    9,876.49x = 58,608,054.62
  5. Step 5: Solve for x
    x = 58,608,054.62/9,876.49
  6. Step 6: Final answer
    x = 5,934.10

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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.