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Finding the Fourth Proportional to 2,955.66, 4,078.89 and 1,696.94

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Solution

The fourth proportional to 2,955.66, 4,078.89 and 1,696.94 is: 2,341.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.66 : 4,078.89 = 1,696.94 : x
  2. Step 2: Convert to fraction form
    2,955.66/4,078.89 = 1,696.94/x
  3. Step 3: Cross multiply
    2,955.66x = 4,078.89 × 1,696.94
  4. Step 4: Simplify right side
    2,955.66x = 6,921,611.20
  5. Step 5: Solve for x
    x = 6,921,611.20/2,955.66
  6. Step 6: Final answer
    x = 2,341.82

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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.