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Finding the Fourth Proportional to 2,393.84, 3,308.09 and 1,951.58

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Solution

The fourth proportional to 2,393.84, 3,308.09 and 1,951.58 is: 2,696.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,393.84 : 3,308.09 = 1,951.58 : x
  2. Step 2: Convert to fraction form
    2,393.84/3,308.09 = 1,951.58/x
  3. Step 3: Cross multiply
    2,393.84x = 3,308.09 × 1,951.58
  4. Step 4: Simplify right side
    2,393.84x = 6,455,975.98
  5. Step 5: Solve for x
    x = 6,455,975.98/2,393.84
  6. Step 6: Final answer
    x = 2,696.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.