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Finding the Fourth Proportional to 6,915.79, 10,373.69 and 2,964.49

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Solution

The fourth proportional to 6,915.79, 10,373.69 and 2,964.49 is: 4,446.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.79 : 10,373.69 = 2,964.49 : x
  2. Step 2: Convert to fraction form
    6,915.79/10,373.69 = 2,964.49/x
  3. Step 3: Cross multiply
    6,915.79x = 10,373.69 × 2,964.49
  4. Step 4: Simplify right side
    6,915.79x = 30,752,700.27
  5. Step 5: Solve for x
    x = 30,752,700.27/6,915.79
  6. Step 6: Final answer
    x = 4,446.74

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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.