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Finding the Fourth Proportional to 4,672.58, 7,007.66 and 1,384.79

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Solution

The fourth proportional to 4,672.58, 7,007.66 and 1,384.79 is: 2,076.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,672.58 : 7,007.66 = 1,384.79 : x
  2. Step 2: Convert to fraction form
    4,672.58/7,007.66 = 1,384.79/x
  3. Step 3: Cross multiply
    4,672.58x = 7,007.66 × 1,384.79
  4. Step 4: Simplify right side
    4,672.58x = 9,704,130.57
  5. Step 5: Solve for x
    x = 9,704,130.57/4,672.58
  6. Step 6: Final answer
    x = 2,076.82

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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.