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Finding the Fourth Proportional to 9,818.84, 14,729.18 and 3,975.91

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Solution

The fourth proportional to 9,818.84, 14,729.18 and 3,975.91 is: 5,964.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,818.84 : 14,729.18 = 3,975.91 : x
  2. Step 2: Convert to fraction form
    9,818.84/14,729.18 = 3,975.91/x
  3. Step 3: Cross multiply
    9,818.84x = 14,729.18 × 3,975.91
  4. Step 4: Simplify right side
    9,818.84x = 58,561,837.35
  5. Step 5: Solve for x
    x = 58,561,837.35/9,818.84
  6. Step 6: Final answer
    x = 5,964.23

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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.