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Finding the Fourth Proportional to 9,956.65, 14,936.21 and 3,384.72

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Solution

The fourth proportional to 9,956.65, 14,936.21 and 3,384.72 is: 5,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,956.65 : 14,936.21 = 3,384.72 : x
  2. Step 2: Convert to fraction form
    9,956.65/14,936.21 = 3,384.72/x
  3. Step 3: Cross multiply
    9,956.65x = 14,936.21 × 3,384.72
  4. Step 4: Simplify right side
    9,956.65x = 50,554,888.71
  5. Step 5: Solve for x
    x = 50,554,888.71/9,956.65
  6. Step 6: Final answer
    x = 5,077.50

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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.