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Finding the Fourth Proportional to 1,934.73, 2,901.06 and 959.64

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Solution

The fourth proportional to 1,934.73, 2,901.06 and 959.64 is: 1,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.73 : 2,901.06 = 959.64 : x
  2. Step 2: Convert to fraction form
    1,934.73/2,901.06 = 959.64/x
  3. Step 3: Cross multiply
    1,934.73x = 2,901.06 × 959.64
  4. Step 4: Simplify right side
    1,934.73x = 2,783,973.22
  5. Step 5: Solve for x
    x = 2,783,973.22/1,934.73
  6. Step 6: Final answer
    x = 1,438.95

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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.