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Finding the Fourth Proportional to 1,696.66, 2,544.63 and 1,071.77

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Solution

The fourth proportional to 1,696.66, 2,544.63 and 1,071.77 is: 1,607.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.66 : 2,544.63 = 1,071.77 : x
  2. Step 2: Convert to fraction form
    1,696.66/2,544.63 = 1,071.77/x
  3. Step 3: Cross multiply
    1,696.66x = 2,544.63 × 1,071.77
  4. Step 4: Simplify right side
    1,696.66x = 2,727,258.10
  5. Step 5: Solve for x
    x = 2,727,258.10/1,696.66
  6. Step 6: Final answer
    x = 1,607.43

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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.